Stored cross-site scripting in Angular - CVE-2025-66412
Published: December 1, 2025 / Updated: September 14, 2026
Vulnerability identifier: #VU118873
CSH Severity: Medium
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2025-66412
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The disclosed vulnerability allows a remote user to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data in the Angular Template Compiler. A remote user can use SVG animation elements, SVG URL or MathML attributes to permanently inject and execute arbitrary JavaScript code in victim's browser.
Affected software
Angular
How to mitigate CVE-2025-66412
Install updates from vendor's website.
Angular - addressed in versions 19.2.17, 20.3.15, 21.0.2