CVE-2025-46893 is a stored Cross-Site Scripting (XSS) vulnerability affecting Adobe Experience Manager (AEM) versions 6.5.22 and earlier. This vulnerability allows a low-privileged attacker to inject malicious JavaScript code into vulnerable form fields within the AEM interface. When a victim subsequently accesses a page containing the compromised form field, the injected script executes in the context of their browser session. The vulnerability is classified under CWE-79, indicating improper neutralization of input leading to script injection. The CVSS v3.1 base score is 5.4, reflecting a medium severity level. The attack vector is network-based (AV:N), with low attack complexity (AC:L), requiring low privileges (PR:L) and user interaction (UI:R). The scope is changed (S:C), meaning the vulnerability can affect resources beyond the initially vulnerable component. The impact affects confidentiality and integrity partially (C:L/I:L), but does not affect availability (A:N). No known exploits are currently reported in the wild, and no official patches have been linked yet. Stored XSS vulnerabilities in AEM are particularly concerning because AEM is widely used as a content management system for enterprise websites and digital experiences, often hosting sensitive business and customer data. Successful exploitation could lead to session hijacking, credential theft, or unauthorized actions performed on behalf of authenticated users.

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, healthcare, and large enterprises. Exploitation could lead to unauthorized access to sensitive information, including personal data protected under GDPR, potentially resulting in regulatory penalties and reputational damage. The ability to execute malicious scripts in users' browsers can facilitate phishing, credential theft, and lateral movement within the organization’s web infrastructure. Given the medium severity and requirement for user interaction, targeted spear-phishing or social engineering campaigns could increase the risk. Additionally, the changed scope (S:C) indicates that the vulnerability might allow attackers to affect other components or users beyond the initial vulnerable form, amplifying the potential damage. The absence of known exploits currently provides a window for proactive mitigation, but organizations should act swiftly to prevent future exploitation.

European organizations should implement the following specific mitigations: 1) Immediately audit all AEM instances to identify versions at or below 6.5.22 and prioritize upgrading to the latest patched version once available. 2) In the interim, apply strict input validation and output encoding on all user-supplied data in form fields to prevent script injection. 3) Employ Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts in browsers accessing AEM content. 4) Conduct regular security reviews and penetration testing focused on XSS vulnerabilities within AEM deployments. 5) Educate users and administrators about the risks of clicking on suspicious links or interacting with untrusted content within the AEM environment. 6) Monitor web server and application logs for unusual activity indicative of attempted XSS exploitation. 7) Limit privileges of users who can submit content to reduce the risk posed by low-privileged attackers. 8) Implement web application firewalls (WAFs) with rules tailored to detect and block XSS payloads targeting AEM forms.