What happened
An Angular vulnerability allows arbitrary code execution following disclosure of CVE‑2025‑14839 in the Angular framework. The flaw occurs in template parsing where crafted input can bypass sanitization, enabling attackers to execute arbitrary JavaScript code in applications using vulnerable Angular versions. Exploitation can affect web applications with publicly accessible input forms or API endpoints. Snyk researchers confirmed that unpatched applications are at risk of DOM-based XSS (cross-site scripting), which can escalate to session hijacking, data manipulation, and unauthorized code execution. Both Angular 12 and 13 versions are affected, with newer releases patched to enforce stricter template sanitization.
Who is affected
Developers and organizations using affected Angular versions in web applications are at risk, with exposure occurring via untrusted input or public-facing forms.
Why CISOs should care
Exploitation can compromise user data, session integrity, and application trustworthiness, impacting business operations and exposing web applications to reputational and regulatory risk.
3 practical actions
- Update Angular frameworks: Upgrade to patched versions to remediate the vulnerability.
- Validate and sanitize inputs: Implement robust server-side and client-side input validation to prevent XSS attacks.
- Monitor web application activity: Track anomalous script execution and user behavior indicative of exploitation attempts.