CVE-2025-64585 is a stored Cross-Site Scripting (XSS) vulnerability identified in Adobe Experience Manager (AEM) versions 6.5.23 and earlier. The vulnerability arises from insufficient sanitization of user input in certain form fields, allowing a low-privileged attacker to inject malicious JavaScript code that is persistently stored on the server. When legitimate users access the affected pages, the malicious script executes in their browsers, potentially leading to session hijacking, credential theft, or unauthorized actions performed on behalf of the user. The vulnerability has a CVSS 3.1 base score of 5.4, indicating medium severity. The attack vector is network-based, with low attack complexity, requiring privileges (PR:L) and user interaction (UI:R). The scope is changed (S:C), meaning the vulnerability affects resources beyond the initially vulnerable component. Although no known exploits have been reported in the wild, the risk remains significant due to the widespread use of AEM in enterprise web content management. The vulnerability impacts confidentiality and integrity but does not affect availability. The lack of an official patch at the time of reporting necessitates immediate mitigation through secure coding practices and security controls. Organizations should monitor Adobe advisories for patches and updates. The vulnerability is categorized under CWE-79, a common and well-understood class of web application vulnerabilities.

For European organizations, the impact of CVE-2025-64585 can be substantial, especially for those relying on Adobe Experience Manager for managing public-facing websites and intranet portals. Exploitation could lead to unauthorized disclosure of sensitive information such as session cookies, personal data, or corporate credentials, undermining confidentiality. Attackers could also manipulate web content, potentially damaging organizational reputation or facilitating further attacks like phishing. The integrity of web applications is at risk, as malicious scripts can alter page behavior or content. Although availability is not directly impacted, the indirect effects of compromised trust and potential regulatory penalties under GDPR for data breaches could be severe. Organizations in sectors such as finance, government, healthcare, and e-commerce, which heavily use AEM, may face increased risk. The requirement for user interaction and partial privileges somewhat limits exploitation but does not eliminate the threat, especially in environments with many users and varying privilege levels.

1. Monitor Adobe security advisories closely and apply official patches or updates for Adobe Experience Manager as soon as they become available. 2. Implement strict input validation and output encoding on all user-supplied data, especially in form fields, to prevent injection of malicious scripts. 3. Deploy Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts and reduce the impact of XSS attacks. 4. Conduct regular security assessments and code reviews focusing on input handling and sanitization in web applications. 5. Limit user privileges to the minimum necessary to reduce the risk posed by low-privileged attackers. 6. Educate users about the risks of interacting with suspicious content and encourage vigilance when browsing internal and external web portals. 7. Use web application firewalls (WAFs) with rules designed to detect and block XSS payloads targeting AEM. 8. Implement multi-factor authentication (MFA) to reduce the impact of credential theft resulting from XSS exploitation. 9. Isolate critical administrative interfaces from general user access to minimize exposure. 10. Maintain comprehensive logging and monitoring to detect suspicious activities indicative of exploitation attempts.