CVE-2025-64583 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 user-controllable input within the Document Object Model (DOM) of web pages served by AEM, allowing an attacker to inject and execute malicious JavaScript code in the victim's browser context. The attack vector 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 the injected script. This can lead to unauthorized actions such as session hijacking, theft of sensitive information, or performing actions on behalf of the user. The vulnerability has a CVSS 3.1 base score of 5.4, reflecting medium severity, with attack vector being network (remote), low attack complexity, requiring low privileges, and user interaction. The scope is changed, indicating that the vulnerability may affect resources beyond the initially vulnerable component. No patches or exploit code are currently publicly available, and no known active exploitation has been reported. The vulnerability is categorized under CWE-79, which corresponds to Cross-Site Scripting issues. Given AEM's widespread use in enterprise content management and digital experience delivery, this vulnerability poses a risk to organizations relying on AEM for web content management and delivery.

For European organizations, this vulnerability can lead to several security risks including theft of user credentials, session tokens, and other sensitive data accessible via the browser. It may also enable attackers to perform unauthorized actions on behalf of users, potentially compromising the integrity of web applications and user trust. Organizations with customer-facing portals or intranet sites powered by Adobe Experience Manager are particularly vulnerable. The impact is heightened in sectors such as finance, government, and healthcare where sensitive data is handled. Additionally, reputational damage and regulatory consequences under GDPR could arise if personal data is compromised. However, since exploitation requires user interaction and low privileges, the risk is somewhat mitigated but still significant given the potential for targeted phishing or social engineering campaigns. The absence of known exploits in the wild currently reduces immediate risk but does not eliminate the threat of future exploitation.

1. Monitor Adobe's official channels for patches addressing CVE-2025-64583 and apply them promptly once available. 2. Implement strict input validation and sanitization on all user-controllable inputs within AEM 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. Educate users and administrators about the risks of interacting with suspicious URLs or web content to reduce the likelihood of successful exploitation. 5. Conduct regular security assessments and penetration testing focused on web application vulnerabilities, including DOM-based XSS. 6. Utilize web application firewalls (WAFs) with rules tuned to detect and block XSS attack patterns targeting AEM. 7. Review and minimize the use of client-side scripts that process user input dynamically to reduce attack surface. 8. Implement multi-factor authentication (MFA) to mitigate the impact of credential theft resulting from XSS attacks. 9. Maintain comprehensive logging and monitoring to detect anomalous activities indicative of exploitation attempts.