Stored XSS in Adobe Experience Manager

Executive Summary

Adobe Experience Manager has a stored Cross-Site Scripting (XSS) vulnerability. A low-privileged attacker can inject malicious scripts into vulnerable form fields. When a victim visits the affected page, the injected JavaScript executes in their browser.

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Detection Guidance

Detecting this stored XSS vulnerability requires manual inspection of Adobe Experience Manager form fields. Check input fields in forms for improper input validation by submitting test payloads like <script>alert(1)</script> and observing if the script executes in the browser. Review server logs for unusual input patterns or errors related to XSS.

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Impact Analysis

An attacker could steal session cookies, redirect users to malicious sites, or perform actions on behalf of the user. This could lead to unauthorized access to sensitive data or account compromise.

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Compliance Impact

This vulnerability could lead to unauthorized data access or disclosure, violating GDPR's data protection requirements or HIPAA's safeguards for protected health information. Compliance may be compromised if user data is exposed.

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Mitigation Strategies

Apply the latest security patches from Adobe for Experience Manager. Implement strict input validation and output encoding for all form fields. Use Content Security Policy (CSP) headers to mitigate XSS impact. Restrict low-privileged user permissions to reduce attack surface.

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