CVE-2025-47034 is a stored Cross-Site Scripting (XSS) vulnerability affecting Adobe Experience Manager (AEM) versions 6.5.22 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 persistently stored on the server. When a victim user accesses the affected page containing the vulnerable form field, the malicious script executes in their browser context. This DOM-based XSS attack can lead to unauthorized actions such as session hijacking, credential theft, or unauthorized manipulation of web content. The vulnerability has a CVSS 3.1 base score of 5.4, indicating a medium severity level. The attack vector is network-based (AV:N), requires low attack complexity (AC:L), and low privileges (PR:L). User interaction is required (UI:R), and the scope is changed (S:C), meaning the vulnerability affects components beyond the initially vulnerable component. The impact affects confidentiality and integrity but not availability. No known exploits are reported in the wild yet, and no official patches have been linked at the time of publication. Given that Adobe Experience Manager is widely used for enterprise content management and digital experience delivery, exploitation could compromise sensitive business data and user trust.

For European organizations, the impact of this vulnerability can be significant due to the widespread adoption of Adobe Experience Manager in sectors such as government, finance, retail, and media. Successful exploitation could lead to unauthorized disclosure of sensitive information, manipulation of website content, and potential phishing attacks targeting employees or customers. This could result in reputational damage, regulatory non-compliance (e.g., GDPR violations due to data leakage), and financial losses. The medium severity score reflects that while the vulnerability requires some user interaction and low privileges, the scope change and potential for persistent script execution increase risk. Organizations relying on AEM for public-facing websites or intranet portals should be particularly vigilant, as attackers could leverage this vulnerability to target users with elevated privileges or access internal resources indirectly.

To mitigate this vulnerability, European organizations should prioritize the following actions: 1) Monitor Adobe’s official security advisories closely and apply patches or updates as soon as they become available. 2) Implement strict input validation and output encoding on all user-supplied data within AEM forms to prevent injection of malicious scripts. 3) Employ Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts and reduce the impact of XSS attacks. 4) Conduct thorough security testing, including automated and manual penetration testing focused on input fields and DOM manipulation within AEM environments. 5) Educate developers and administrators on secure coding practices specific to AEM and XSS prevention. 6) Limit user privileges to the minimum necessary to reduce the attack surface, especially for users who can submit content to AEM forms. 7) Monitor web traffic and logs for unusual activity that may indicate attempted exploitation. These measures, combined with timely patching, will reduce the risk and potential impact of this vulnerability.