CVE-2025-64562 is a DOM-based Cross-Site Scripting (XSS) vulnerability identified in Adobe Experience Manager (AEM) versions 6.5.23 and earlier. This vulnerability arises when untrusted data is improperly handled in the client-side Document Object Model (DOM), allowing an attacker to inject malicious JavaScript code that executes within the victim's browser context. The attack vector requires a low-privileged attacker to craft a malicious URL or web page that, when visited or interacted with by a user, triggers the execution of the injected script. The vulnerability impacts confidentiality and integrity by potentially enabling session hijacking, theft of sensitive information, or unauthorized actions performed with the victim's privileges. The CVSS 3.1 score of 5.4 reflects a medium severity level, considering the network attack vector (AV:N), low attack complexity (AC:L), low privileges required (PR:L), required user interaction (UI:R), and partial impact on confidentiality and integrity (C:L/I:L) but no impact on availability (A:N). No known exploits are currently reported in the wild, and no official patches have been linked yet. However, the vulnerability's presence in a widely used enterprise content management system makes it a significant concern. The DOM-based nature means the vulnerability is client-side, complicating detection and mitigation. Organizations using AEM should review custom client-side code, sanitize inputs, and enforce security headers such as Content Security Policy (CSP) to mitigate risks until official patches are released.

For European organizations, the exploitation of this vulnerability could lead to unauthorized disclosure of sensitive information, such as session tokens or personal data, through malicious script execution in users' browsers. This can facilitate session hijacking, unauthorized actions on behalf of users, and potential compromise of user accounts or internal systems accessed via AEM portals. Given AEM's role in managing digital content and customer interactions, successful exploitation could damage organizational reputation, lead to regulatory non-compliance (e.g., GDPR breaches), and result in financial losses. The requirement for user interaction reduces the likelihood of widespread automated exploitation but targeted phishing or social engineering campaigns could increase risk. The vulnerability does not directly impact system availability but undermines trust in web applications and user data integrity. Organizations with public-facing AEM deployments or those integrating AEM with sensitive internal systems are particularly at risk.

1. Monitor Adobe's official channels for patches addressing CVE-2025-64562 and apply them promptly upon release. 2. Conduct a thorough review of all custom client-side scripts and components within AEM to ensure proper input validation and output encoding, especially for data reflected in the DOM. 3. Implement and enforce strict Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts and reduce the impact of injected code. 4. Educate users and administrators about the risks of interacting with suspicious URLs or content to reduce the likelihood of successful social engineering attacks. 5. Utilize web application firewalls (WAF) with rules tailored to detect and block common XSS attack patterns targeting AEM. 6. Regularly audit and monitor AEM logs and user activity for signs of suspicious behavior indicative of exploitation attempts. 7. Limit privileges of users interacting with AEM to the minimum necessary to reduce potential damage from compromised accounts. 8. Consider deploying browser security features such as HTTP-only and secure cookies to protect session tokens from theft via XSS.