CVE-2021-29454 (High) detected in smarty/smarty-v3.1.39

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CVE-2021-29454 - High Severity Vulnerability

Vulnerable Library - smarty/smarty-v3.1.39

Smarty - the compiling PHP template engine

Library home page: https://api.github.com/repos/smarty-php/smarty/zipball/e27da524f7bcd7361e3ea5cdfa99c4378a7b5419

Dependency Hierarchy:

• ❌ smarty/smarty-v3.1.39 (Vulnerable Library)

Found in HEAD commit: 86334f0df744f6cfa35a438987cbb4d18d65b5c2

Found in base branch: master

Vulnerability Details

Smarty is a template engine for PHP, facilitating the separation of presentation (HTML/CSS) from application logic. Prior to versions 3.1.42 and 4.0.2, template authors could run arbitrary PHP code by crafting a malicious math string. If a math string was passed through as user provided data to the math function, external users could run arbitrary PHP code by crafting a malicious math string. Users should upgrade to version 3.1.42 or 4.0.2 to receive a patch.

Publish Date: 2022-01-10

URL: CVE-2021-29454

CVSS 3 Score Details (8.1)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: Required
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: High
  • Integrity Impact: High
  • Availability Impact: None

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: GHSA-29gp-2c3m-3j6m

Release Date: 2022-01-10

Fix Resolution: v3.1.42,v4.0.2