CVE-2025-66412
Angular Stored XSS Vulnerability via SVG Animation, SVG URL and MathML Attributes
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.
INFO
Published Date :
Dec. 1, 2025, 11:15 p.m.
Last Modified :
Dec. 2, 2025, 5:16 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Update Angular to version 21.0.2 or later.
- Update Angular to version 20.3.15 or later.
- Update Angular to version 19.2.17 or later.
Public PoC/Exploit Available at Github
CVE-2025-66412 has a 2 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-66412.
| URL | Resource |
|---|---|
| https://github.com/angular/angular/commit/1c6b0704fb63d051fab8acff84d076abfbc4893a | |
| https://github.com/angular/angular/security/advisories/GHSA-v4hv-rgfq-gp49 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-66412 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-66412
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Chrome Extension for Bounty Hunters and Red Teams that detects and safely exploits vulnerabilities in modern SSR frameworks - Next.js, Angular, SvelteKit, Nuxt with CVE scanning, timing oracles, and DNS exfiltration
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CSS JavaScript HTML
Complete Toolkit CVE for Angular Webframe work (19.2.2)
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-66412 vulnerability anywhere in the article.
-
CybersecurityNews
Angular Platform Vulnerability Allows Malicious Code Execution Via Weaponized SVG Animation Files
A critical Stored XSS vulnerability in Angular’s template compiler (CVE-2025-66412) allows attackers to execute arbitrary code by weaponizing SVG animation attributes. Bypassing Angular’s built-in sec ... Read more
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Daily CyberSecurity
Critical Elementor Plugin Flaw (CVE-2025-8489, CVSS 9.8) Under Active Exploitation Allows Unauthenticated Admin Takeover
A critical security flaw in a popular WordPress plugin has triggered a massive wave of exploitation attempts, with threat actors actively trying to seize control of vulnerable websites by registering ... Read more
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Daily CyberSecurity
High-Severity Angular Flaw (CVE-2025-66412) Allows Stored XSS via SVG and MathML Bypass
The maintainers of Angular, the popular platform for building mobile and desktop web applications, have released an important security advisory regarding a high-severity vulnerability in the Angular T ... Read more
The following table lists the changes that have been made to the
CVE-2025-66412 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Dec. 01, 2025
Action Type Old Value New Value Added 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. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-79 Added Reference https://github.com/angular/angular/commit/1c6b0704fb63d051fab8acff84d076abfbc4893a Added Reference https://github.com/angular/angular/security/advisories/GHSA-v4hv-rgfq-gp49