CVE-2025-64560 is a DOM-based Cross-Site Scripting (XSS) vulnerability identified in Adobe Experience Manager (AEM) versions 6.5.23 and earlier. This vulnerability arises from improper handling of untrusted data within the Document Object Model (DOM) in the web application, allowing an attacker to inject malicious scripts that execute in the context of the victim's browser. Unlike traditional reflected or stored XSS, DOM-based XSS occurs entirely on the client side, where the malicious payload manipulates the DOM environment to execute code. The attacker, with low privileges, can craft a malicious URL or web page that, when visited or interacted with by a user, triggers the execution of arbitrary JavaScript. This can lead to unauthorized actions such as session hijacking, theft of sensitive information, or manipulation of the user interface. The vulnerability requires user interaction, which limits automated exploitation but does not eliminate risk, especially in targeted phishing or social engineering campaigns. The CVSS 3.1 base score of 5.4 reflects a medium severity level, with attack vector being network (remote), low attack complexity, low privileges required, and user interaction necessary. The scope is changed, indicating that the vulnerability affects components beyond the initially vulnerable module, potentially impacting other parts of the application. No patches or known exploits are currently available, emphasizing the importance of proactive mitigation. The vulnerability is classified under CWE-79, which covers Cross-Site Scripting issues.

For European organizations, the impact of CVE-2025-64560 can be significant in terms of confidentiality and integrity of user data. Exploitation could allow attackers to hijack user sessions, steal authentication tokens, or perform actions on behalf of users, potentially leading to unauthorized access to sensitive information or manipulation of business-critical workflows. Although availability is not directly impacted, the reputational damage and potential regulatory consequences under GDPR for data breaches involving personal data could be severe. Organizations relying on Adobe Experience Manager for content management and digital experience delivery, especially those in sectors like finance, government, healthcare, and e-commerce, face increased risk. The requirement for user interaction means that phishing or social engineering could be vectors for exploitation, necessitating user awareness and training. The medium severity score suggests that while the vulnerability is not critical, it should be addressed promptly to prevent escalation or chaining with other vulnerabilities.

1. Apply patches or updates from Adobe as soon as they become available to address CVE-2025-64560. 2. Implement strict input validation and sanitization on all user-controllable inputs within AEM to prevent injection of malicious scripts into the DOM. 3. Deploy Content Security Policy (CSP) headers to restrict the execution of untrusted scripts and reduce the impact of potential XSS attacks. 4. Conduct regular security assessments and code reviews focusing on client-side scripting and DOM manipulation within AEM implementations. 5. Educate users and administrators about the risks of interacting with suspicious links or content to reduce the likelihood of successful social engineering. 6. Monitor web application logs and user activity for unusual behavior that could indicate exploitation attempts. 7. Consider implementing web application firewalls (WAF) with rules tailored to detect and block XSS payloads targeting AEM. 8. Limit the privileges of users and services interacting with AEM to minimize potential damage from compromised accounts.