CVE-2025-64792 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 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 inject JavaScript code into vulnerable form fields within AEM, which is then served to other users. When victims browse pages containing these fields, the malicious scripts execute in their browsers, potentially allowing attackers to steal session cookies, perform actions on behalf of users, or manipulate page content. The vulnerability has a CVSS 3.1 base score of 5.4, indicating medium severity. The attack vector is network-based (AV:N), with low attack complexity (AC:L), requiring low privileges (PR:L) and user interaction (UI:R). The scope is changed (S:C), meaning the vulnerability affects resources beyond the initially vulnerable component. The impacts on confidentiality and integrity are low (C:L, I:L), with no impact on availability (A:N). No known exploits have been reported in the wild, and no official patches are currently linked, suggesting organizations must proactively implement mitigations. Given AEM's widespread use in enterprise content management and digital experience platforms, this vulnerability poses a risk to organizations relying on AEM for web content delivery and customer engagement.

For European organizations, the impact of CVE-2025-64792 can be significant due to the widespread adoption of Adobe Experience Manager in government, financial services, retail, and media sectors. Exploitation could lead to unauthorized disclosure of sensitive information such as session tokens or personal data, undermining user privacy and trust. Attackers could also manipulate web content, potentially defacing sites or redirecting users to malicious domains, damaging brand reputation. Although the vulnerability requires user interaction and low privileges, the stored nature of the XSS means that many users could be affected once malicious scripts are injected. This could facilitate phishing campaigns or further malware distribution. The medium severity rating reflects moderate risk, but the potential for chained attacks or targeting high-value users increases the threat. European data protection regulations such as GDPR heighten the consequences of data breaches resulting from such vulnerabilities, potentially leading to regulatory fines and legal liabilities.

To mitigate this vulnerability, European organizations should implement the following specific measures: 1) Apply strict input validation and sanitization on all form fields within Adobe Experience Manager to prevent injection of malicious scripts. 2) Employ Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts and reduce the impact of any injected code. 3) Monitor web application logs and user inputs for suspicious patterns indicative of XSS attempts. 4) Limit user privileges to the minimum necessary, especially for content editors and contributors who can input data into forms. 5) Conduct regular security assessments and penetration testing focused on web application vulnerabilities, including stored XSS. 6) Stay updated with Adobe security advisories and apply patches promptly once available. 7) Educate users and administrators about the risks of XSS and safe browsing practices to reduce the likelihood of successful exploitation. 8) Consider implementing web application firewalls (WAFs) with rules designed to detect and block XSS payloads targeting AEM environments.