diff --git a/app/code/Magento/Cms/Model/Wysiwyg/Images/Storage.php b/app/code/Magento/Cms/Model/Wysiwyg/Images/Storage.php
index 0688534dc4ad9..6d8c4ecd71127 100644
--- a/app/code/Magento/Cms/Model/Wysiwyg/Images/Storage.php
+++ b/app/code/Magento/Cms/Model/Wysiwyg/Images/Storage.php
@@ -735,7 +735,7 @@ protected function _validatePath($path)
      */
     protected function _sanitizePath($path)
     {
-        return rtrim(preg_replace('~[/\\\]+~', '/', $this->_directory->getDriver()->getRealPath($path)), '/');
+        return rtrim(preg_replace('~[/\\\]+~', '/', $this->_directory->getDriver()->getRealPathSafety($path)), '/');
     }
 
     /**
diff --git a/app/code/Magento/Cms/Test/Unit/Model/Wysiwyg/Images/StorageTest.php b/app/code/Magento/Cms/Test/Unit/Model/Wysiwyg/Images/StorageTest.php
index 805f6d042f94a..e09ad27e2b7ca 100644
--- a/app/code/Magento/Cms/Test/Unit/Model/Wysiwyg/Images/StorageTest.php
+++ b/app/code/Magento/Cms/Test/Unit/Model/Wysiwyg/Images/StorageTest.php
@@ -114,16 +114,11 @@ class StorageTest extends \PHPUnit\Framework\TestCase
     protected function setUp()
     {
         $this->filesystemMock = $this->createMock(\Magento\Framework\Filesystem::class);
-        $this->driverMock = $this->getMockForAbstractClass(
-            \Magento\Framework\Filesystem\DriverInterface::class,
-            [],
-            '',
-            false,
-            false,
-            true,
-            ['getRealPath']
-        );
+        $this->driverMock = $this->getMockBuilder(\Magento\Framework\Filesystem\DriverInterface::class)
+            ->setMethods(['getRealPath', 'getRealPathSafety'])
+            ->getMockForAbstractClass();
         $this->driverMock->expects($this->any())->method('getRealPath')->will($this->returnArgument(0));
+        $this->driverMock->expects($this->any())->method('getRealPathSafety')->will($this->returnArgument(0));
 
         $this->directoryMock = $this->createPartialMock(
             \Magento\Framework\Filesystem\Directory\Write::class,
diff --git a/dev/tests/integration/testsuite/Magento/Cms/Controller/Adminhtml/Wysiwyg/Images/DeleteFilesTest.php b/dev/tests/integration/testsuite/Magento/Cms/Controller/Adminhtml/Wysiwyg/Images/DeleteFilesTest.php
index 1ac4482c0eb01..8da29210d2f4b 100644
--- a/dev/tests/integration/testsuite/Magento/Cms/Controller/Adminhtml/Wysiwyg/Images/DeleteFilesTest.php
+++ b/dev/tests/integration/testsuite/Magento/Cms/Controller/Adminhtml/Wysiwyg/Images/DeleteFilesTest.php
@@ -31,30 +31,29 @@ class DeleteFilesTest extends \PHPUnit\Framework\TestCase
     /**
      * @var string
      */
-    private $fullDirectoryPath;
+    private $fileName = 'magento_small_image.jpg';
 
     /**
-     * @var string
+     * @var \Magento\Framework\Filesystem
      */
-    private $fileName = 'magento_small_image.jpg';
+    private $filesystem;
+
+    /**
+     * @var \Magento\Framework\ObjectManagerInterface
+     */
+    private $objectManager;
 
     /**
      * @inheritdoc
      */
     protected function setUp()
     {
-        $objectManager = \Magento\TestFramework\Helper\Bootstrap::getObjectManager();
-        $directoryName = 'directory1';
-        $filesystem = $objectManager->get(\Magento\Framework\Filesystem::class);
+        $this->objectManager = \Magento\TestFramework\Helper\Bootstrap::getObjectManager();
+        $this->filesystem = $this->objectManager->get(\Magento\Framework\Filesystem::class);
         /** @var \Magento\Cms\Helper\Wysiwyg\Images $imagesHelper */
-        $this->imagesHelper = $objectManager->get(\Magento\Cms\Helper\Wysiwyg\Images::class);
-        $this->mediaDirectory = $filesystem->getDirectoryWrite(DirectoryList::MEDIA);
-        $this->fullDirectoryPath = $this->imagesHelper->getStorageRoot() . '/' . $directoryName;
-        $this->mediaDirectory->create($this->mediaDirectory->getRelativePath($this->fullDirectoryPath));
-        $filePath =  $this->fullDirectoryPath . DIRECTORY_SEPARATOR . $this->fileName;
-        $fixtureDir = realpath(__DIR__ . '/../../../../../Catalog/_files');
-        copy($fixtureDir . '/' . $this->fileName, $filePath);
-        $this->model = $objectManager->get(\Magento\Cms\Controller\Adminhtml\Wysiwyg\Images\DeleteFiles::class);
+        $this->imagesHelper = $this->objectManager->get(\Magento\Cms\Helper\Wysiwyg\Images::class);
+        $this->mediaDirectory = $this->filesystem->getDirectoryWrite(DirectoryList::MEDIA);
+        $this->model = $this->objectManager->get(\Magento\Cms\Controller\Adminhtml\Wysiwyg\Images\DeleteFiles::class);
     }
 
     /**
@@ -65,17 +64,48 @@ protected function setUp()
      */
     public function testExecute()
     {
+        $directoryName = 'directory1';
+        $fullDirectoryPath = $this->imagesHelper->getStorageRoot() . '/' . $directoryName;
+        $this->mediaDirectory->create($this->mediaDirectory->getRelativePath($fullDirectoryPath));
+        $filePath =  $fullDirectoryPath . DIRECTORY_SEPARATOR . $this->fileName;
+        $fixtureDir = realpath(__DIR__ . '/../../../../../Catalog/_files');
+        copy($fixtureDir . '/' . $this->fileName, $filePath);
+
         $this->model->getRequest()->setMethod('POST')
             ->setPostValue('files', [$this->imagesHelper->idEncode($this->fileName)]);
-        $this->model->getStorage()->getSession()->setCurrentPath($this->fullDirectoryPath);
+        $this->model->getStorage()->getSession()->setCurrentPath($fullDirectoryPath);
         $this->model->execute();
         $this->assertFalse(
             $this->mediaDirectory->isExist(
-                $this->mediaDirectory->getRelativePath($this->fullDirectoryPath . '/' . $this->fileName)
+                $this->mediaDirectory->getRelativePath($fullDirectoryPath . '/' . $this->fileName)
             )
         );
     }
 
+    /**
+     * Execute method with correct directory path and file name to check that files under linked media directory
+     * can be removed.
+     *
+     * @return void
+     * @magentoDataFixture Magento/Cms/_files/linked_media.php
+     */
+    public function testExecuteWithLinkedMedia()
+    {
+        $directoryName = 'linked_media';
+        $fullDirectoryPath = $this->filesystem->getDirectoryRead(DirectoryList::PUB)
+                ->getAbsolutePath() . DIRECTORY_SEPARATOR . $directoryName;
+        $filePath =  $fullDirectoryPath . DIRECTORY_SEPARATOR . $this->fileName;
+        $fixtureDir = realpath(__DIR__ . '/../../../../../Catalog/_files');
+        copy($fixtureDir . '/' . $this->fileName, $filePath);
+
+        $wysiwygDir = $this->mediaDirectory->getAbsolutePath() . '/wysiwyg';
+        $this->model->getRequest()->setMethod('POST')
+            ->setPostValue('files', [$this->imagesHelper->idEncode($this->fileName)]);
+        $this->model->getStorage()->getSession()->setCurrentPath($wysiwygDir);
+        $this->model->execute();
+        $this->assertFalse(is_file($fullDirectoryPath . DIRECTORY_SEPARATOR . $this->fileName));
+    }
+
     /**
      * @inheritdoc
      */
diff --git a/dev/tests/integration/testsuite/Magento/Cms/Controller/Adminhtml/Wysiwyg/Images/DeleteFolderTest.php b/dev/tests/integration/testsuite/Magento/Cms/Controller/Adminhtml/Wysiwyg/Images/DeleteFolderTest.php
index a16525ce244b1..79d4a05aba3c4 100644
--- a/dev/tests/integration/testsuite/Magento/Cms/Controller/Adminhtml/Wysiwyg/Images/DeleteFolderTest.php
+++ b/dev/tests/integration/testsuite/Magento/Cms/Controller/Adminhtml/Wysiwyg/Images/DeleteFolderTest.php
@@ -29,9 +29,9 @@ class DeleteFolderTest extends \PHPUnit\Framework\TestCase
     private $mediaDirectory;
 
     /**
-     * @var string
+     * @var \Magento\Framework\Filesystem
      */
-    private $fullDirectoryPath;
+    private $filesystem;
 
     /**
      * @inheritdoc
@@ -39,37 +39,56 @@ class DeleteFolderTest extends \PHPUnit\Framework\TestCase
     protected function setUp()
     {
         $objectManager = \Magento\TestFramework\Helper\Bootstrap::getObjectManager();
-        $filesystem = $objectManager->get(\Magento\Framework\Filesystem::class);
-        $this->mediaDirectory = $filesystem->getDirectoryWrite(DirectoryList::MEDIA);
+        $this->filesystem = $objectManager->get(\Magento\Framework\Filesystem::class);
+        $this->mediaDirectory = $this->filesystem->getDirectoryWrite(DirectoryList::MEDIA);
         /** @var \Magento\Cms\Helper\Wysiwyg\Images $imagesHelper */
         $this->imagesHelper = $objectManager->get(\Magento\Cms\Helper\Wysiwyg\Images::class);
-        $this->fullDirectoryPath = $this->imagesHelper->getStorageRoot();
         $this->model = $objectManager->get(\Magento\Cms\Controller\Adminhtml\Wysiwyg\Images\DeleteFolder::class);
     }
 
     /**
      * Execute method with correct directory path to check that directories under WYSIWYG media directory
      * can be removed.
-     *
-     * @return void
      */
     public function testExecute()
     {
+        $fullDirectoryPath = $this->imagesHelper->getStorageRoot();
         $directoryName = DIRECTORY_SEPARATOR . 'NewDirectory';
         $this->mediaDirectory->create(
-            $this->mediaDirectory->getRelativePath($this->fullDirectoryPath . $directoryName)
+            $this->mediaDirectory->getRelativePath($fullDirectoryPath . $directoryName)
         );
         $this->model->getRequest()->setParams(['node' => $this->imagesHelper->idEncode($directoryName)]);
         $this->model->execute();
         $this->assertFalse(
             $this->mediaDirectory->isExist(
                 $this->mediaDirectory->getRelativePath(
-                    $this->fullDirectoryPath . $directoryName
+                    $fullDirectoryPath . $directoryName
                 )
             )
         );
     }
 
+    /**
+     * Execute method with correct directory path to check that directories under linked media directory
+     * can be removed.
+     *
+     * @magentoDataFixture Magento/Cms/_files/linked_media.php
+     */
+    public function testExecuteWithLinkedMedia()
+    {
+        $linkedDirectory = $this->filesystem->getDirectoryWrite(DirectoryList::PUB);
+        $linkedDirectoryPath =  $this->filesystem->getDirectoryRead(DirectoryList::PUB)
+                ->getAbsolutePath() . 'linked_media';
+        $directoryName = 'NewDirectory';
+
+        $linkedDirectory->create(
+            $linkedDirectory->getRelativePath($linkedDirectoryPath . DIRECTORY_SEPARATOR . $directoryName)
+        );
+        $this->model->getRequest()->setParams(['node' => $this->imagesHelper->idEncode($directoryName)]);
+        $this->model->execute();
+        $this->assertFalse(is_dir($linkedDirectoryPath . DIRECTORY_SEPARATOR . $directoryName));
+    }
+
     /**
      * @inheritdoc
      */
diff --git a/dev/tests/integration/testsuite/Magento/Cms/Controller/Adminhtml/Wysiwyg/Images/NewFolderTest.php b/dev/tests/integration/testsuite/Magento/Cms/Controller/Adminhtml/Wysiwyg/Images/NewFolderTest.php
index f7600097c50b2..0632af20f8300 100644
--- a/dev/tests/integration/testsuite/Magento/Cms/Controller/Adminhtml/Wysiwyg/Images/NewFolderTest.php
+++ b/dev/tests/integration/testsuite/Magento/Cms/Controller/Adminhtml/Wysiwyg/Images/NewFolderTest.php
@@ -26,12 +26,17 @@ class NewFolderTest extends \PHPUnit\Framework\TestCase
     /**
      * @var string
      */
-    private $fullDirectoryPath;
+    private $dirName= 'NewDirectory';
 
     /**
-     * @var string
+     * @var \Magento\Framework\Filesystem
      */
-    private $dirName= 'NewDirectory';
+    private $filesystem;
+
+    /**
+     * @var \Magento\Cms\Helper\Wysiwyg\Images
+     */
+    private $imagesHelper;
 
     /**
      * @inheritdoc
@@ -39,34 +44,49 @@ class NewFolderTest extends \PHPUnit\Framework\TestCase
     protected function setUp()
     {
         $objectManager = \Magento\TestFramework\Helper\Bootstrap::getObjectManager();
-        $filesystem = $objectManager->get(\Magento\Framework\Filesystem::class);
-        $this->mediaDirectory = $filesystem->getDirectoryWrite(DirectoryList::MEDIA);
+        $this->filesystem = $objectManager->get(\Magento\Framework\Filesystem::class);
         /** @var \Magento\Cms\Helper\Wysiwyg\Images $imagesHelper */
-        $imagesHelper = $objectManager->get(\Magento\Cms\Helper\Wysiwyg\Images::class);
-        $this->fullDirectoryPath = $imagesHelper->getStorageRoot();
+        $this->imagesHelper = $objectManager->get(\Magento\Cms\Helper\Wysiwyg\Images::class);
+        $this->mediaDirectory = $this->filesystem->getDirectoryWrite(DirectoryList::MEDIA);
         $this->model = $objectManager->get(\Magento\Cms\Controller\Adminhtml\Wysiwyg\Images\NewFolder::class);
     }
 
     /**
-     * Execute method with correct directory path to check that new folder can be created under WYSIWYG media directory.
-     *
-     * @return void
+     * Execute method with correct directory path to check that new folder can be created under linked media directory.
      */
     public function testExecute()
     {
+        $fullDirectoryPath = $this->imagesHelper->getStorageRoot();
         $this->model->getRequest()->setMethod('POST')
             ->setPostValue('name', $this->dirName);
-        $this->model->getStorage()->getSession()->setCurrentPath($this->fullDirectoryPath);
+        $this->model->getStorage()->getSession()->setCurrentPath($fullDirectoryPath);
         $this->model->execute();
         $this->assertTrue(
             $this->mediaDirectory->isExist(
                 $this->mediaDirectory->getRelativePath(
-                    $this->fullDirectoryPath . DIRECTORY_SEPARATOR . $this->dirName
+                    $fullDirectoryPath . DIRECTORY_SEPARATOR . $this->dirName
                 )
             )
         );
     }
 
+    /**
+     * Execute method with correct directory path to check that new folder can be created under WYSIWYG media directory.
+     *
+     * @magentoDataFixture Magento/Cms/_files/linked_media.php
+     */
+    public function testExecuteWithLinkedMedia()
+    {
+        $linkedDirectoryPath =  $this->filesystem->getDirectoryRead(DirectoryList::PUB)
+                ->getAbsolutePath() . DIRECTORY_SEPARATOR . 'linked_media';
+        $fullDirectoryPath = $this->imagesHelper->getStorageRoot();
+        $this->model->getRequest()->setMethod('POST')
+            ->setPostValue('name', $this->dirName);
+        $this->model->getStorage()->getSession()->setCurrentPath($fullDirectoryPath);
+        $this->model->execute();
+        $this->assertTrue(is_dir($linkedDirectoryPath . DIRECTORY_SEPARATOR . $this->dirName));
+    }
+
     /**
      * @inheritdoc
      */
diff --git a/dev/tests/integration/testsuite/Magento/Cms/Controller/Adminhtml/Wysiwyg/Images/UploadTest.php b/dev/tests/integration/testsuite/Magento/Cms/Controller/Adminhtml/Wysiwyg/Images/UploadTest.php
index 1439ee145ab91..629d997a64f87 100644
--- a/dev/tests/integration/testsuite/Magento/Cms/Controller/Adminhtml/Wysiwyg/Images/UploadTest.php
+++ b/dev/tests/integration/testsuite/Magento/Cms/Controller/Adminhtml/Wysiwyg/Images/UploadTest.php
@@ -26,29 +26,29 @@ class UploadTest extends \PHPUnit\Framework\TestCase
     /**
      * @var string
      */
-    private $fullDirectoryPath;
+    private $fileName = 'magento_small_image.jpg';
 
     /**
-     * @var string
+     * @var \Magento\Framework\Filesystem
      */
-    private $fileName = 'magento_small_image.jpg';
+    private $filesystem;
+
+    /**
+     * @var \Magento\Framework\ObjectManagerInterface
+     */
+    private $objectManager;
 
     /**
      * @inheritdoc
      */
     protected function setUp()
     {
-        $objectManager = \Magento\TestFramework\Helper\Bootstrap::getObjectManager();
-        $directoryName = 'directory1';
-        $filesystem = $objectManager->get(\Magento\Framework\Filesystem::class);
-        /** @var \Magento\Cms\Helper\Wysiwyg\Images $imagesHelper */
-        $imagesHelper = $objectManager->get(\Magento\Cms\Helper\Wysiwyg\Images::class);
-        $this->mediaDirectory = $filesystem->getDirectoryWrite(DirectoryList::MEDIA);
-        $this->fullDirectoryPath = $imagesHelper->getStorageRoot() . DIRECTORY_SEPARATOR . $directoryName;
-        $this->mediaDirectory->create($this->mediaDirectory->getRelativePath($this->fullDirectoryPath));
-        $this->model = $objectManager->get(\Magento\Cms\Controller\Adminhtml\Wysiwyg\Images\Upload::class);
+        $this->objectManager = \Magento\TestFramework\Helper\Bootstrap::getObjectManager();
+        $this->filesystem = $this->objectManager->get(\Magento\Framework\Filesystem::class);
+        $this->mediaDirectory = $this->filesystem->getDirectoryWrite(DirectoryList::MEDIA);
+        $this->model = $this->objectManager->get(\Magento\Cms\Controller\Adminhtml\Wysiwyg\Images\Upload::class);
         $fixtureDir = realpath(__DIR__ . '/../../../../../Catalog/_files');
-        $tmpFile = __DIR__ . DIRECTORY_SEPARATOR . $this->fileName;
+        $tmpFile = $this->filesystem->getDirectoryRead(DirectoryList::PUB)->getAbsolutePath() . $this->fileName;
         copy($fixtureDir . DIRECTORY_SEPARATOR . $this->fileName, $tmpFile);
         $_FILES = [
             'image' => [
@@ -66,21 +66,47 @@ protected function setUp()
      * located under WYSIWYG media.
      *
      * @return void
+     * @magentoAppIsolation enabled
      */
     public function testExecute()
     {
+        $directoryName = 'directory1';
+        /** @var \Magento\Cms\Helper\Wysiwyg\Images $imagesHelper */
+        $imagesHelper = $this->objectManager->get(\Magento\Cms\Helper\Wysiwyg\Images::class);
+        $fullDirectoryPath = $imagesHelper->getStorageRoot() . DIRECTORY_SEPARATOR . $directoryName;
+        $this->mediaDirectory->create($this->mediaDirectory->getRelativePath($fullDirectoryPath));
+
         $this->model->getRequest()->setParams(['type' => 'image/png']);
-        $this->model->getStorage()->getSession()->setCurrentPath($this->fullDirectoryPath);
+        $this->model->getStorage()->getSession()->setCurrentPath($fullDirectoryPath);
         $this->model->execute();
         $this->assertTrue(
             $this->mediaDirectory->isExist(
                 $this->mediaDirectory->getRelativePath(
-                    $this->fullDirectoryPath . DIRECTORY_SEPARATOR . $this->fileName
+                    $fullDirectoryPath . DIRECTORY_SEPARATOR . $this->fileName
                 )
             )
         );
     }
 
+    /**
+     * Execute method with correct directory path and file name to check that file can be uploaded to the directory
+     * located under linked folder.
+     *
+     * @return void
+     * @magentoDataFixture Magento/Cms/_files/linked_media.php
+     */
+    public function testExecuteWithLinkedMedia()
+    {
+        $directoryName = 'linked_media';
+        $fullDirectoryPath = $this->filesystem->getDirectoryRead(DirectoryList::PUB)
+                ->getAbsolutePath() . DIRECTORY_SEPARATOR . $directoryName;
+        $wysiwygDir = $this->mediaDirectory->getAbsolutePath() . '/wysiwyg';
+        $this->model->getRequest()->setParams(['type' => 'image/png']);
+        $this->model->getStorage()->getSession()->setCurrentPath($wysiwygDir);
+        $this->model->execute();
+        $this->assertTrue(is_file($fullDirectoryPath . DIRECTORY_SEPARATOR . $this->fileName));
+    }
+
     /**
      * @inheritdoc
      */
diff --git a/dev/tests/integration/testsuite/Magento/Cms/_files/linked_media.php b/dev/tests/integration/testsuite/Magento/Cms/_files/linked_media.php
new file mode 100644
index 0000000000000..03db65db53e9b
--- /dev/null
+++ b/dev/tests/integration/testsuite/Magento/Cms/_files/linked_media.php
@@ -0,0 +1,22 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+
+$objectManager = \Magento\TestFramework\Helper\Bootstrap::getObjectManager();
+$directoryName = 'linked_media';
+/** @var \Magento\Framework\Filesystem $filesystem */
+$filesystem = $objectManager->get(\Magento\Framework\Filesystem::class);
+$fullDirectoryPath = $filesystem->getDirectoryRead(Magento\Framework\App\Filesystem\DirectoryList::PUB)
+        ->getAbsolutePath() . $directoryName;
+$mediaDirectory = $filesystem->getDirectoryWrite(Magento\Framework\App\Filesystem\DirectoryList::MEDIA);
+
+$wysiwygDir = $mediaDirectory->getAbsolutePath() . 'wysiwyg';
+$mediaDirectory->delete($wysiwygDir);
+if (!is_dir($fullDirectoryPath)) {
+    mkdir($fullDirectoryPath);
+}
+if (is_dir($fullDirectoryPath) && !is_dir($wysiwygDir)) {
+    symlink($fullDirectoryPath, $wysiwygDir);
+}
diff --git a/dev/tests/integration/testsuite/Magento/Cms/_files/linked_media_rollback.php b/dev/tests/integration/testsuite/Magento/Cms/_files/linked_media_rollback.php
new file mode 100644
index 0000000000000..856e51ca76ba5
--- /dev/null
+++ b/dev/tests/integration/testsuite/Magento/Cms/_files/linked_media_rollback.php
@@ -0,0 +1,20 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+
+$objectManager = \Magento\TestFramework\Helper\Bootstrap::getObjectManager();
+$directoryName = 'linked_media';
+/** @var \Magento\Framework\Filesystem $filesystem */
+$filesystem = $objectManager->get(\Magento\Framework\Filesystem::class);
+$pubDir = $filesystem->getDirectoryWrite(Magento\Framework\App\Filesystem\DirectoryList::PUB);
+$fullDirectoryPath = $pubDir->getAbsolutePath() . DIRECTORY_SEPARATOR . $directoryName;
+$mediaDirectory = $filesystem->getDirectoryWrite(Magento\Framework\App\Filesystem\DirectoryList::MEDIA);
+$wysiwygDir = $mediaDirectory->getAbsolutePath() . 'wysiwyg';
+if (is_link($wysiwygDir)) {
+    unlink($wysiwygDir);
+}
+if (is_dir($fullDirectoryPath)) {
+    $pubDir->delete($directoryName);
+}
diff --git a/lib/internal/Magento/Framework/App/Filesystem/DirectoryResolver.php b/lib/internal/Magento/Framework/App/Filesystem/DirectoryResolver.php
index 4b62476ae8445..ed044afebd3df 100644
--- a/lib/internal/Magento/Framework/App/Filesystem/DirectoryResolver.php
+++ b/lib/internal/Magento/Framework/App/Filesystem/DirectoryResolver.php
@@ -5,6 +5,8 @@
  */
 namespace Magento\Framework\App\Filesystem;
 
+use Magento\Framework\Filesystem;
+
 /**
  * Magento directories resolver.
  */
@@ -15,12 +17,19 @@ class DirectoryResolver
      */
     private $directoryList;
 
+    /**
+     * @var \Magento\Framework\Filesystem
+     */
+    private $filesystem;
+
     /**
      * @param DirectoryList $directoryList
+     * @param Filesystem $filesystem
      */
-    public function __construct(DirectoryList $directoryList)
+    public function __construct(DirectoryList $directoryList, Filesystem $filesystem)
     {
         $this->directoryList = $directoryList;
+        $this->filesystem = $filesystem;
     }
 
     /**
@@ -38,7 +47,8 @@ public function __construct(DirectoryList $directoryList)
      */
     public function validatePath($path, $directoryConfig = DirectoryList::MEDIA)
     {
-        $realPath = realpath($path);
+        $directory = $this->filesystem->getDirectoryWrite($directoryConfig);
+        $realPath = $directory->getDriver()->getRealPathSafety($path);
         $root = $this->directoryList->getPath($directoryConfig);
         
         return strpos($realPath, $root) === 0;
diff --git a/lib/internal/Magento/Framework/App/Test/Unit/Filesystem/DirectoryResolverTest.php b/lib/internal/Magento/Framework/App/Test/Unit/Filesystem/DirectoryResolverTest.php
new file mode 100644
index 0000000000000..79c0a95495bd7
--- /dev/null
+++ b/lib/internal/Magento/Framework/App/Test/Unit/Filesystem/DirectoryResolverTest.php
@@ -0,0 +1,82 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+namespace Magento\Framework\App\Test\Unit\Filesystem;
+
+/**
+ * Unit tests for the \Magento\Framework\App\Filesystem\DirectoryResolver class
+ */
+class DirectoryResolverTest extends \PHPUnit\Framework\TestCase
+{
+    /**
+     * @var \Magento\Framework\App\Filesystem\DirectoryList|\PHPUnit_Framework_MockObject_MockObject
+     */
+    private $directoryList;
+
+    /**
+     * @var \Magento\Framework\Filesystem|\PHPUnit_Framework_MockObject_MockObject
+     */
+    private $filesystem;
+
+    /**
+     * @var \Magento\Framework\App\Filesystem\DirectoryResolver
+     */
+    private $directoryResolver;
+
+    /**
+     * @inheritdoc
+     */
+    protected function setUp()
+    {
+        $this->directoryList = $this->getMockBuilder(\Magento\Framework\App\Filesystem\DirectoryList::class)
+            ->disableOriginalConstructor()
+            ->getMock();
+
+        $this->filesystem = $this->getMockBuilder(\Magento\Framework\Filesystem::class)
+            ->disableOriginalConstructor()
+            ->getMock();
+
+        $this->directoryResolver = new \Magento\Framework\App\Filesystem\DirectoryResolver(
+            $this->directoryList,
+            $this->filesystem
+        );
+    }
+
+    /**
+     * @dataProvider validatePathDataProvider
+     * @param string $path
+     * @param bool $expectedResult
+     */
+    public function testValidatePath($path, $expectedResult)
+    {
+        $rootPath = '/path/root';
+        $directoryConfig = 'directory_config';
+        $directory = $this->getMockBuilder(\Magento\Framework\Filesystem\Directory\WriteInterface::class)
+            ->setMethods(['getDriver'])
+            ->getMockForAbstractClass();
+        $driver = $this->getMockBuilder(\Magento\Framework\Filesystem\DriverInterface::class)
+            ->setMethods(['getRealPathSafety'])
+            ->getMockForAbstractClass();
+        $directory->expects($this->atLeastOnce())->method('getDriver')->willReturn($driver);
+        $driver->expects($this->atLeastOnce())->method('getRealPathSafety')->with($path)
+            ->willReturnArgument(0);
+        $this->filesystem->expects($this->atLeastOnce())->method('getDirectoryWrite')->with($directoryConfig)
+            ->willReturn($directory);
+        $this->directoryList->expects($this->atLeastOnce())->method('getPath')->with($directoryConfig)
+            ->willReturn($rootPath);
+        $this->assertEquals($expectedResult, $this->directoryResolver->validatePath($path, $directoryConfig));
+    }
+
+    /**
+     * @return array
+     */
+    public function validatePathDataProvider()
+    {
+        return [
+            ['/path/root/for/validation', true],
+            ['/path/invalid/for/validation', false]
+        ];
+    }
+}