CVE-2025-46954 is a stored Cross-Site Scripting (XSS) vulnerability affecting Adobe Experience Manager (AEM) versions 6.5.22 and earlier. This vulnerability arises from insufficient input sanitization in certain form fields, allowing a low-privileged attacker to inject malicious JavaScript code that is persistently stored on the server. When a victim user accesses a page containing the compromised form field, the malicious script executes in their browser context. This DOM-based XSS attack can lead to the theft of session tokens, user impersonation, unauthorized actions on behalf of the victim, or delivery of further malware payloads. The vulnerability requires the attacker to have at least low-level privileges to submit malicious input, and user interaction is necessary for exploitation, as the victim must visit the affected page. The CVSS v3.1 base score is 5.4 (medium severity), reflecting network attack vector, low attack complexity, low privileges required, and user interaction needed. The vulnerability impacts confidentiality and integrity but does not affect availability. No known public exploits have been reported yet, and no patches are currently linked, indicating that organizations should prioritize mitigation and monitoring to prevent exploitation.

For European organizations using Adobe Experience Manager, this vulnerability poses a significant risk to the confidentiality and integrity of web applications and their users. A successful exploit could lead to session hijacking, unauthorized access to sensitive data, and manipulation of web content, potentially damaging organizational reputation and violating data protection regulations such as GDPR. Since AEM is widely used by enterprises and public sector entities across Europe for content management and digital experience delivery, the vulnerability could be leveraged to target employees, customers, or citizens interacting with affected web portals. The persistent nature of stored XSS increases the risk of widespread impact, especially in environments with multiple users accessing the compromised pages. Additionally, exploitation could facilitate further attacks such as phishing or malware distribution, amplifying the threat landscape for European organizations.

To mitigate CVE-2025-46954, European organizations should implement the following specific measures: 1) Immediately review and restrict user input in all form fields within Adobe Experience Manager, applying strict input validation and output encoding to neutralize malicious scripts. 2) Employ Content Security Policy (CSP) headers to limit the execution of unauthorized scripts and reduce the impact of potential XSS payloads. 3) Monitor web application logs and user activity for unusual input patterns or repeated form submissions indicative of attempted exploitation. 4) Segment and limit privileges for users who can submit content to minimize the risk from low-privileged attackers. 5) Stay alert for official Adobe patches or security advisories and apply updates promptly once available. 6) Conduct regular security assessments and penetration testing focused on XSS vulnerabilities in AEM deployments. 7) Educate web administrators and developers on secure coding practices specific to AEM to prevent similar vulnerabilities in the future.