CVE-2025-64583 is a DOM-based Cross-Site Scripting (XSS) vulnerability identified in Adobe Experience Manager (AEM) versions 6.5.23 and earlier. DOM-based XSS occurs when client-side scripts write untrusted data to the Document Object Model (DOM) without proper sanitization, enabling attackers to inject malicious scripts that execute in the victim’s browser context. This vulnerability requires a low-privileged attacker to craft a malicious URL or manipulate a web page that, when visited or interacted with by a user, triggers the execution of attacker-controlled scripts. The attack vector is network-based (remote), with low attack complexity and requiring user interaction, such as clicking a link or visiting a malicious page. The vulnerability impacts confidentiality and integrity by potentially allowing theft of sensitive information, session tokens, or performing actions on behalf of the user. However, it does not affect system availability. The CVSS v3.1 base score is 5.4, indicating medium severity. No patches or exploits are currently publicly available, but the vulnerability is published and should be addressed promptly. Adobe Experience Manager is widely used by enterprises for web content management and digital experience delivery, making this vulnerability relevant for organizations relying on AEM for their web infrastructure. The vulnerability’s exploitation scope is limited to the client side, but the consequences can be significant if sensitive user data or administrative sessions are compromised.

For European organizations, the impact of CVE-2025-64583 can be significant in terms of data confidentiality and user trust. Organizations using Adobe Experience Manager to manage websites or digital content risk exposure of sensitive user data, including authentication tokens and personal information, if attackers successfully exploit this vulnerability. This can lead to session hijacking, unauthorized actions performed on behalf of users, and potential reputational damage. Given that many European enterprises and public sector entities use AEM for customer-facing portals and internal digital services, the vulnerability could facilitate targeted phishing campaigns or lateral movement within networks if combined with other attack vectors. Although availability is not directly impacted, the indirect effects of compromised user sessions or data leakage can disrupt business operations and compliance with GDPR and other data protection regulations. The requirement for user interaction reduces the likelihood of widespread automated exploitation but does not eliminate targeted attacks, especially against high-value targets or users with elevated privileges.

European organizations should implement a multi-layered mitigation approach. First, monitor Adobe’s security advisories closely and apply official patches or updates as soon as they become available to remediate the vulnerability. In the absence of patches, implement strict input validation and sanitization on all user-controllable inputs within AEM to prevent injection of malicious scripts into the DOM. Deploy Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts and reduce the impact of potential XSS attacks. Conduct regular security assessments and penetration testing focused on client-side vulnerabilities in AEM deployments. Educate users and administrators about the risks of clicking on suspicious links or interacting with untrusted content, emphasizing phishing awareness. Additionally, consider implementing web application firewalls (WAFs) with rules tailored to detect and block XSS attack patterns targeting AEM. Review and minimize user privileges within AEM to limit the potential damage from compromised accounts. Finally, ensure logging and monitoring are in place to detect anomalous activities that may indicate exploitation attempts.