CVE-2025-47039 is a stored DOM-based 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 the AEM platform, 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 type of vulnerability exploits the Document Object Model (DOM) environment, meaning the malicious payload is executed as part of client-side script processing rather than server-side rendering. The CVSS 3.1 base score is 5.4 (medium severity), reflecting that the attack vector is network-based (remote), requires low privileges, and user interaction (visiting the page) is necessary. The vulnerability impacts confidentiality and integrity by enabling potential theft of session tokens, credentials, or manipulation of displayed content, but does not affect availability. No known exploits are currently reported in the wild, and no patches have been linked yet. Given AEM’s role as a content management system widely used by enterprises for web content delivery, exploitation could lead to targeted attacks such as session hijacking, phishing, or defacement within affected web portals. The vulnerability’s scope is limited to users who visit the compromised pages, and the attacker must have at least low-level access to inject the malicious payload, which may be possible through compromised or misconfigured user accounts or third-party integrations.

For European organizations, the impact of this vulnerability can be significant, especially for those relying on Adobe Experience Manager to manage public-facing websites or intranet portals. Successful exploitation could lead to unauthorized disclosure of sensitive user information, including session cookies and personal data, potentially violating GDPR requirements on data protection and privacy. The integrity of web content could be compromised, damaging organizational reputation and trust. Additionally, attackers could leverage the XSS vulnerability to conduct further attacks such as delivering malware or redirecting users to malicious sites. Given the widespread use of AEM by government agencies, financial institutions, and large enterprises in Europe, the risk of targeted attacks exploiting this vulnerability is elevated. The requirement for low privileges to inject scripts means insider threats or compromised user accounts could facilitate exploitation. Although availability is not directly impacted, the indirect effects on business operations and compliance could be substantial.

To mitigate this vulnerability, European organizations should prioritize the following actions: 1) Apply security updates from Adobe as soon as they become available; monitor Adobe security advisories closely since no patch links are currently provided. 2) Implement strict input validation and output encoding on all form fields within AEM, especially those exposed to authenticated users with low privileges. 3) Employ Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts and reduce the impact of potential XSS payloads. 4) Conduct regular security audits and penetration testing focused on web application vulnerabilities, including DOM-based XSS. 5) Limit user privileges rigorously to reduce the risk of malicious script injection by low-privileged accounts. 6) Educate users and administrators about the risks of XSS and encourage vigilance when interacting with web content. 7) Monitor web traffic and logs for unusual activity indicative of exploitation attempts. 8) Consider deploying Web Application Firewalls (WAFs) with rules tailored to detect and block XSS attack patterns targeting AEM environments.