CVE-2025-64596 is a stored Cross-Site Scripting (XSS) vulnerability identified in Adobe Experience Manager (AEM) versions 6.5.23 and earlier. Stored XSS occurs when malicious scripts are permanently stored on the target server, typically within form fields or other user input areas, and later executed in the browsers of users who access the affected content. In this case, a low-privileged attacker can exploit vulnerable form fields to inject malicious JavaScript code. When a victim visits a page containing the injected script, the malicious code executes in their browser context, potentially allowing the attacker to steal session tokens, 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 relies on user interaction (visiting the affected page). The CVSS 3.1 base score is 5.4, indicating a medium severity level, with the vector AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N. This means the attack can be performed remotely over the network with low attack complexity, requires low privileges, and user interaction is necessary. The scope is changed, indicating that the vulnerability affects resources beyond the initially vulnerable component. The impact on confidentiality and integrity is limited but non-negligible, while availability is not affected. No patches are currently linked, and no known exploits have been reported in the wild as of the publication date. Adobe Experience Manager is widely used by enterprises for managing digital content and customer experiences, making this vulnerability relevant for organizations relying on AEM for web portals, intranets, and digital services. Attackers exploiting this vulnerability could compromise user sessions or manipulate content, leading to reputational damage and potential data leakage.

For European organizations, the impact of CVE-2025-64596 can be significant, particularly for those using Adobe Experience Manager to deliver public-facing websites or internal portals. Exploitation could lead to theft of user credentials, session hijacking, or unauthorized actions performed in the context of legitimate users. This can result in data breaches, loss of user trust, and compliance issues under regulations such as GDPR. The vulnerability's requirement for user interaction and low privilege reduces the likelihood of widespread automated exploitation but does not eliminate targeted attacks. Organizations in sectors such as finance, government, healthcare, and e-commerce, which often use AEM for digital engagement, may face increased risk. Additionally, the scope change in the CVSS vector suggests that the vulnerability could affect multiple components or services within the AEM environment, potentially amplifying the impact. Although no known exploits are currently reported, the medium severity rating and the widespread use of AEM in Europe necessitate proactive measures to prevent exploitation.

1. Monitor Adobe's official channels for patches addressing CVE-2025-64596 and apply them promptly once released. 2. Implement strict input validation and output encoding on all form fields within Adobe Experience Manager to prevent injection of malicious scripts. 3. Employ Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts in browsers accessing AEM content. 4. Conduct regular security audits and penetration testing focused on web application vulnerabilities, including stored XSS, within AEM deployments. 5. Limit the privileges of users who can submit data to vulnerable forms, and enforce multi-factor authentication to reduce the risk of compromised accounts. 6. Use web application firewalls (WAFs) configured to detect and block XSS attack patterns targeting AEM. 7. Educate users and administrators about the risks of XSS and encourage cautious behavior when interacting with web content. 8. Review and sanitize all third-party integrations and plugins used within AEM that might introduce additional XSS risks. 9. Maintain comprehensive logging and monitoring to detect suspicious activities indicative of exploitation attempts. 10. Isolate critical AEM components and restrict access to minimize the attack surface.