CVE-2025-66412 (High) detected in compiler-12.2.5.tgz

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CVE-2025-66412 - High Severity Vulnerability

Vulnerable Library - compiler-12.2.5.tgz

Angular - the compiler library

Library home page: https://registry.npmjs.org/@angular/compiler/-/compiler-12.2.5.tgz

Path to dependency file: /package.json

Path to vulnerable library: /package.json

Dependency Hierarchy:

• ❌ compiler-12.2.5.tgz (Vulnerable Library)

Found in HEAD commit: 36a9c5d28529109984de6fcc3d0a157d561dac4a

Found in base branch: master

Vulnerability Details

Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 21.0.2, 20.3.15, and 19.2.17, A Stored Cross-Site Scripting (XSS) vulnerability has been identified in the Angular Template Compiler. It occurs because the compiler's internal security schema is incomplete, allowing attackers to bypass Angular's built-in security sanitization. Specifically, the schema fails to classify certain URL-holding attributes (e.g., those that could contain javascript: URLs) as requiring strict URL security, enabling the injection of malicious scripts. This vulnerability is fixed in 21.0.2, 20.3.15, and 19.2.17.

Publish Date: 2025-12-01

URL: CVE-2025-66412

CVSS 3 Score Details (8.0)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: Low
  • User Interaction: Required
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: High
  • Integrity Impact: High
  • Availability Impact: High

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Release Date: 2025-12-01

Fix Resolution: https://github.com/angular/angular.git - 19.2.17,https://github.com/angular/angular.git - 20.3.15,https://github.com/angular/angular.git - 21.0.2

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