CVE-2025-46952 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 within AEM, allowing a low-privileged attacker to inject malicious JavaScript code that is persistently stored on the server. When a victim user accesses the affected page containing the maliciously crafted form field, the injected script executes in their browser context. This can lead to unauthorized actions such as session hijacking, credential theft, or performing actions on behalf of the user without their consent. The vulnerability has a CVSS v3.1 base score of 5.4, indicating a medium severity level. The attack vector is network-based (remote), requires low privileges on the application, and does not require user interaction beyond visiting the compromised page. The impact affects confidentiality and integrity but not availability. No known exploits are currently reported in the wild, and no official patches have been linked yet. Given the widespread use of Adobe Experience Manager in enterprise content management and digital experience platforms, this vulnerability poses a significant risk if exploited, especially in environments where users have elevated privileges or access sensitive information through AEM portals.

For European organizations, the impact of this vulnerability can be substantial. Many enterprises, government agencies, and public sector organizations in Europe use Adobe Experience Manager for managing websites, intranets, and digital services. Exploitation of this stored XSS could lead to unauthorized access to sensitive information, session hijacking of privileged users, and potential lateral movement within the network. This could compromise personal data protected under GDPR, leading to regulatory penalties and reputational damage. Additionally, attackers could leverage this vulnerability to deliver further malware or phishing campaigns targeting European users. The persistent nature of stored XSS increases the risk as multiple users can be affected over time. The medium severity score suggests that while the vulnerability is not critical, it still requires prompt attention to prevent exploitation in high-value environments.

Specific mitigation steps include: 1) Immediate review and hardening of input validation and output encoding mechanisms in all form fields within Adobe Experience Manager, especially those exposed to low-privileged users. 2) Implement Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts and reduce the impact of XSS attacks. 3) Monitor and audit AEM logs for unusual input patterns or repeated form submissions that could indicate attempted exploitation. 4) Restrict user privileges to the minimum necessary to reduce the attack surface. 5) Deploy web application firewalls (WAF) with rules specifically tuned to detect and block XSS payloads targeting AEM. 6) As no official patches are currently linked, organizations should engage with Adobe support for any interim fixes or workarounds and plan for rapid patch deployment once available. 7) Conduct user awareness training to recognize suspicious behaviors and potential phishing attempts that could leverage this vulnerability.