CVE-2025-64606 is a stored Cross-Site Scripting (XSS) vulnerability identified in Adobe Experience Manager (AEM) versions 6.5.23 and earlier. Stored XSS occurs when malicious scripts injected by an attacker are permanently stored on the target server, such as in form fields, and later executed in the browsers of users who access the affected content. In this case, a low-privileged attacker can submit specially crafted input into vulnerable form fields within AEM, which is then stored and rendered without proper sanitization or encoding. When a victim user visits the page containing the malicious input, the injected JavaScript executes in their browser context, potentially allowing the attacker to steal session cookies, perform actions on behalf of the user, or deliver further malware. The vulnerability requires the attacker to have at least low-level privileges to submit input and requires user interaction (visiting the affected page). The CVSS 3.1 base score of 5.4 reflects a medium severity, with the vector indicating network attack vector, low attack complexity, low privileges required, user interaction required, and a scope change. The impact affects confidentiality and integrity but not availability. No public exploits have been reported yet, and no patches are currently linked, indicating the vulnerability is newly published. Adobe Experience Manager is widely used by enterprises for web content management, making this vulnerability significant for organizations relying on AEM for public-facing or internal portals. Attackers exploiting this flaw could compromise user sessions, deface websites, or conduct phishing attacks leveraging the trusted domain. The vulnerability is classified under CWE-79, which covers improper neutralization of input during web page generation. The lack of patches means organizations must rely on interim mitigations until official fixes are released.

For European organizations, the impact of CVE-2025-64606 can be significant, especially for those using Adobe Experience Manager to manage websites, intranets, or customer portals. Successful exploitation can lead to theft of user credentials, session hijacking, unauthorized actions performed under user contexts, and potential reputational damage due to website defacement or phishing. Confidentiality of user data and integrity of web content are at risk. While availability is not directly impacted, the indirect consequences such as loss of customer trust or regulatory penalties under GDPR for data breaches could be severe. Organizations in sectors like finance, government, healthcare, and e-commerce that rely on AEM for critical web services are particularly vulnerable. The medium CVSS score indicates moderate urgency, but the potential for lateral attacks or escalation through stolen credentials elevates the risk profile. Since the vulnerability requires user interaction, social engineering or targeted phishing campaigns could increase exploitation likelihood. The absence of known exploits in the wild currently reduces immediate risk but does not preclude future attacks once exploit code becomes available.

1. Monitor Adobe’s official security advisories closely and apply patches or updates as soon as they are released for Adobe Experience Manager versions 6.5.23 and earlier. 2. Implement strict input validation and sanitization on all form fields to prevent injection of malicious scripts. Use server-side validation in addition to client-side checks. 3. Employ robust output encoding/escaping techniques when rendering user-supplied data in web pages to neutralize potentially malicious content. 4. Configure Content Security Policy (CSP) headers to restrict the execution of inline scripts and limit the domains from which scripts can be loaded, reducing the impact of XSS attacks. 5. Conduct regular security assessments and penetration testing focused on web application vulnerabilities, including XSS, to identify and remediate weaknesses proactively. 6. Educate users and administrators about the risks of clicking on suspicious links or interacting with untrusted content within AEM-managed sites. 7. Consider implementing Web Application Firewalls (WAF) with rules tuned to detect and block XSS payloads targeting AEM. 8. Review and minimize privileges for users who can submit content to reduce the attack surface. 9. Monitor logs and alerts for unusual activity that may indicate attempted exploitation. 10. If patching is delayed, consider temporary workarounds such as disabling vulnerable form fields or restricting access to affected pages.