CVE-2025-64611 is a stored Cross-Site Scripting (XSS) vulnerability identified in Adobe Experience Manager (AEM) versions 6.5.23 and earlier. This vulnerability arises from insufficient sanitization of user input in certain form fields, allowing a low-privileged attacker to inject malicious JavaScript code that is stored on the server and subsequently executed in the browsers of users who visit the affected pages. The attack vector is network-based with low attack complexity and requires the attacker to have low privileges within the system, such as a user with limited access to input forms. User interaction is necessary, as the victim must visit the compromised page for the malicious script to execute. The vulnerability impacts confidentiality and integrity by enabling theft of session cookies, credentials, or performing unauthorized actions on behalf of the user. The CVSS 3.1 base score is 5.4, indicating medium severity, with the vector string AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N. This means the attack can be launched remotely over the network with low complexity, requires low privileges and user interaction, affects confidentiality and integrity partially, and does not impact availability. No public exploits or active exploitation have been reported yet. Adobe has not provided patch links at the time of this report, but remediation is expected through updates or configuration changes. The vulnerability is classified under CWE-79, a common and well-understood web application security issue. Organizations using AEM for digital experience management should prioritize assessment and mitigation to prevent potential exploitation.

For European organizations, the impact of CVE-2025-64611 can be significant, particularly for those relying on Adobe Experience Manager for content management and digital customer engagement. Exploitation could lead to unauthorized disclosure of sensitive information such as session tokens or user credentials, enabling attackers to impersonate users or escalate privileges. This can result in data breaches, unauthorized transactions, or defacement of web content, damaging organizational reputation and customer trust. The vulnerability does not directly affect system availability but compromises confidentiality and integrity, which are critical for compliance with GDPR and other data protection regulations in Europe. Attackers exploiting this flaw could target government portals, financial institutions, healthcare providers, and large enterprises that use AEM, potentially leading to regulatory penalties and financial losses. The requirement for user interaction and low privileges lowers the barrier for exploitation but also limits the scope to users who access the vulnerable pages. However, the widespread use of AEM in Europe increases the potential attack surface and risk exposure.

To mitigate CVE-2025-64611 effectively, European organizations should: 1) Monitor Adobe's official channels for patches or security updates addressing this vulnerability and apply them promptly once available. 2) Implement strict input validation and output encoding on all user-supplied data in AEM forms 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) Conduct regular security assessments and penetration testing focused on web application vulnerabilities, including stored XSS. 5) Educate users and administrators about the risks of clicking on suspicious links or interacting with untrusted content within AEM-managed sites. 6) Consider using web application firewalls (WAFs) with rules tuned to detect and block XSS payloads targeting AEM. 7) Review and minimize user privileges within AEM to reduce the risk posed by low-privileged attackers. 8) Implement robust logging and monitoring to detect anomalous activities that may indicate exploitation attempts. These measures, combined with timely patching, will significantly reduce the risk posed by this vulnerability.