CVE-2025-66412 – Angular Stored XSS Vulnerability via SVG Animation, SVG URL and MathML Attributes

CVE ID : CVE-2025-66412

Published : Dec. 1, 2025, 11:15 p.m. | 1 hour, 9 minutes ago

Description : 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.

Severity: 8.5 | HIGH

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