CVE-2025-64881 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 are permanently stored on target servers, such as within form fields, and later executed in the browsers of users who access the affected content. In this case, a low-privileged attacker can inject JavaScript code into vulnerable form fields within AEM, which is then served to other users without proper sanitization or encoding. When a victim visits the compromised page, the malicious script executes in their browser context, potentially allowing the attacker to steal session cookies, perform actions on behalf of the user, or deface the website. The vulnerability requires user interaction (visiting the affected page) and low privileges to exploit, making it accessible but not trivial to weaponize at scale. The CVSS 3.1 score of 5.4 reflects a medium severity, with network attack vector, 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 multiple users. No patches or exploit code are currently publicly available, and no known exploits in the wild have been reported. However, given AEM's widespread use in enterprise digital experience management, this vulnerability poses a tangible risk to organizations relying on it for web content delivery and customer engagement.

For European organizations, the impact of this vulnerability can be significant, especially for those using Adobe Experience Manager to manage public-facing websites or intranet portals. Exploitation could lead to unauthorized script execution in users' browsers, enabling session hijacking, credential theft, unauthorized actions, or defacement of web content. This can damage organizational reputation, lead to data breaches involving personal or sensitive information, and disrupt business operations. Since AEM is often used by large enterprises, government agencies, and service providers in Europe, the potential for widespread impact exists if attackers leverage this vulnerability in targeted campaigns. The medium severity score suggests moderate risk, but the real-world impact depends on the deployment context, the sensitivity of the data handled, and the user base exposed to the vulnerable pages. Additionally, the cross-site scripting vulnerability could be chained with other attacks, such as phishing or malware delivery, increasing the overall threat.

1. Apply official Adobe patches or updates as soon as they become available to address CVE-2025-64881. 2. Implement strict input validation and output encoding on all form fields and user-supplied data within Adobe Experience Manager 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 potential XSS attacks. 4. Conduct regular security assessments and code reviews focusing on input handling and sanitization in AEM components. 5. Monitor web server and application logs for unusual activity or repeated injection attempts targeting form fields. 6. Educate users and administrators about the risks of XSS and encourage cautious behavior when interacting with web content. 7. Consider using web application firewalls (WAF) with rules tuned to detect and block XSS payloads targeting AEM. 8. Limit privileges of users who can submit data to vulnerable forms to reduce the attack surface. 9. Isolate critical AEM instances and restrict access to trusted networks where feasible.