CVE-2025-64808 is a stored Cross-Site Scripting (XSS) vulnerability identified in Adobe Experience Manager (AEM) versions 6.5.23 and earlier. Stored XSS vulnerabilities occur when an attacker is able to inject malicious scripts into a web application’s persistent storage, such as form fields, which are later rendered and executed in the browsers of other users. In this case, a low privileged attacker can exploit vulnerable form fields within AEM to insert malicious JavaScript code. When legitimate users visit the affected pages, the injected scripts execute in their browsers, potentially allowing attackers to steal session cookies, perform actions on behalf of the user, or redirect users to malicious sites. The vulnerability requires the attacker to have some level of access to submit data (low privilege) and user interaction (visiting the compromised page) to trigger the exploit. The CVSS 3.1 vector (AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N) indicates network attack vector, low attack complexity, low privileges required, user interaction required, scope changed, and low impact on confidentiality and integrity, with no impact on availability. No patches or known exploits are currently reported, but the vulnerability is publicly disclosed and assigned a medium severity score of 5.4. The vulnerability is classified under CWE-79, which is a common and critical web application security weakness. Adobe Experience Manager is widely used in enterprise content management, digital marketing, and government portals, making this vulnerability significant for organizations relying on AEM for web content delivery and management.

For European organizations, this vulnerability poses a risk primarily to confidentiality and integrity of user sessions and data. Attackers could leverage the stored XSS to hijack user sessions, steal sensitive information, or perform unauthorized actions within the context of the victim’s browser session. This is particularly concerning for organizations handling sensitive or personal data, such as government agencies, financial institutions, and healthcare providers using AEM for their web portals. The vulnerability could also be exploited to deliver malware or phishing attacks by injecting malicious scripts into trusted websites. Although the vulnerability does not impact availability, the reputational damage and potential regulatory consequences under GDPR for data breaches could be significant. The lack of an official patch increases the risk window, requiring organizations to implement compensating controls. The medium CVSS score reflects moderate risk, but the widespread use of AEM in Europe and the potential for targeted attacks against high-value sectors elevate the threat level.

1. Implement strict input validation and sanitization on all form fields within Adobe Experience Manager to prevent injection of malicious scripts. 2. Apply Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts and reduce the impact of XSS attacks. 3. Limit user privileges to the minimum necessary to submit content, reducing the attack surface for low privileged attackers. 4. Monitor web application logs and user activity for unusual input patterns or script injections indicative of exploitation attempts. 5. Use web application firewalls (WAFs) with updated rules to detect and block XSS payloads targeting AEM. 6. Until an official patch is released, consider disabling or restricting vulnerable form functionalities if feasible. 7. Educate users and administrators about the risks of XSS and encourage cautious behavior when interacting with web content. 8. Stay informed on Adobe’s security advisories and apply patches promptly once available. 9. Conduct regular security assessments and penetration testing focused on XSS vulnerabilities in AEM deployments.