Adobe Experience Manager | Cross-site Scripting (DOM-based XSS) (CWE-79)

The primary impact of CVE-2025-64538 is the potential for arbitrary code execution within the victim's browser. An attacker can leverage this to steal session cookies, redirect users to malicious websites, or deface the website. The vulnerability’s DOM-based nature means that the attacker doesn't necessarily need to control the entire page, only a specific element. This makes it easier to exploit than traditional XSS vulnerabilities. The ability to achieve session takeover significantly increases the confidentiality and integrity impact, as an attacker can impersonate legitimate users and access sensitive data. The blast radius extends to any user who interacts with a page containing the injected script.

Organizations heavily reliant on Adobe Experience Manager for content management and digital experiences are at significant risk. Specifically, deployments with custom components or integrations that handle user-supplied data without proper sanitization are particularly vulnerable. Shared hosting environments where multiple websites share the same Experience Manager instance also increase the attack surface.

• adobe: Monitor Experience Manager logs for unusual script execution patterns or attempts to access sensitive data.

Get-WinEvent -LogName Application -FilterXPath "//*[System[Provider[@Name='Adobe Experience Manager']]]" | Where-Object {$_.Message -match "XSS"}

• generic web: Inspect HTTP response headers for unexpected script tags or unusual content.

curl -I https://example.com/ | grep -i script

• generic web: Review access logs for requests containing suspicious URL parameters or POST data that could be exploited for XSS.

 grep -i 'script' /var/log/apache2/access.log

1. 2025-12-10Disclosure

   disclosure

1. Gereserveerd2025-11-05
2. Gepubliceerd2025-12-10
3. Gewijzigd2026-02-26
4. EPSS bijgewerkt2026-03-23

The primary mitigation for CVE-2025-64538 is to upgrade to a patched version of Adobe Experience Manager. Adobe has released updates to address this vulnerability; refer to the official Adobe security advisory for specific version details. If immediate patching is not possible, consider implementing strict input validation and output encoding on all user-supplied data. Web Application Firewalls (WAFs) configured to detect and block XSS payloads can provide an additional layer of defense. Regularly scan your Experience Manager instance for vulnerabilities using automated security tools.