CVE-2025-46926 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 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 a page containing the compromised form field, the malicious script executes in their browser context. This stored XSS can lead to a range of attacks including session hijacking, defacement, redirection to malicious sites, or unauthorized actions performed on behalf of the victim user. The vulnerability has a CVSS 3.1 base score of 5.4, indicating a medium severity level. The vector string (AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N) shows that the attack can be launched remotely over the network with low privileges, requires user interaction (the victim must visit the affected page), and impacts confidentiality and integrity with a scope change, 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, this vulnerability could be leveraged to compromise user trust and data confidentiality if exploited.

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. Exploitation could lead to unauthorized disclosure of sensitive information such as session tokens or personal data, violating GDPR requirements and potentially resulting in regulatory penalties. The integrity of web content could be compromised, damaging brand reputation and user trust. Attackers could also use the vulnerability as a foothold to conduct further attacks within the organization’s network. Since AEM is often used by government agencies, financial institutions, and large enterprises in Europe, the risk of targeted attacks exploiting this vulnerability is notable. The requirement for user interaction means phishing or social engineering could be used to lure victims to maliciously crafted pages. However, the medium severity and lack of known exploits suggest the threat is moderate but should be addressed promptly to prevent escalation.

Organizations should implement a multi-layered mitigation approach. First, monitor Adobe’s official security advisories closely for patches addressing CVE-2025-46926 and apply them immediately upon release. In the interim, review and harden input validation and output encoding mechanisms on all form fields within AEM to prevent script injection. Employ Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts in browsers. Conduct regular security audits and penetration tests focusing on XSS vulnerabilities in AEM deployments. Educate users and administrators about the risks of clicking untrusted links and the importance of reporting suspicious web content. Additionally, consider deploying Web Application Firewalls (WAFs) with rules tailored to detect and block XSS payloads targeting AEM. Logging and monitoring of web application activity should be enhanced to detect potential exploitation attempts early. Finally, restrict privileges for users who can submit content to minimize the attack surface.