CVE-2025-46892 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 environment. When a victim user accesses a page containing the injected malicious script, the script executes in their browser context. The vulnerability is classified as CWE-79, indicating improper neutralization of input during web page generation. The CVSS v3.1 base score is 5.4 (medium severity), with the vector AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N, meaning the attack can be performed remotely over the network with low attack complexity, requires low privileges, and user interaction (visiting the page) is necessary. The scope is changed, indicating that the vulnerability affects resources beyond the initially vulnerable component. The impact includes limited confidentiality and integrity loss, with no impact on availability. No known exploits are currently reported in the wild, and no patches are linked yet. The vulnerability could be leveraged for session hijacking, defacement, or phishing attacks by executing arbitrary scripts in the context of trusted users accessing the affected AEM pages.

For European organizations using Adobe Experience Manager, this vulnerability poses a significant risk to the confidentiality and integrity of user sessions and data. A successful exploit could allow attackers to steal session cookies, perform actions on behalf of authenticated users, or deliver malicious payloads such as ransomware or spyware through the trusted web interface. Given AEM's widespread use in enterprise content management and digital experience platforms across Europe, including government portals, financial institutions, and large enterprises, the impact could extend to data breaches, reputational damage, and regulatory non-compliance under GDPR. The requirement for low privileges to exploit increases the risk, as even non-administrative users or external attackers with limited access could attempt injection. The need for user interaction (visiting the malicious page) means social engineering or phishing could facilitate exploitation. The changed scope indicates that the vulnerability could affect multiple components or users beyond the initial vulnerable form, potentially amplifying the impact.

European organizations should prioritize the following mitigations: 1) Immediate review and sanitization of all user input fields in AEM forms to ensure proper encoding and validation to prevent script injection. 2) Implement Content Security Policy (CSP) headers to restrict execution of unauthorized scripts in browsers accessing AEM pages. 3) Restrict privileges of users who can submit content to minimize the risk of malicious input. 4) Monitor web application logs for unusual input patterns or repeated attempts to inject scripts. 5) Educate users to recognize phishing attempts that could lead to visiting maliciously crafted pages. 6) Apply any available Adobe patches or updates as soon as they are released. 7) Consider deploying Web Application Firewalls (WAF) with rules targeting XSS payloads specific to AEM. 8) Conduct regular security assessments and penetration tests focusing on XSS vulnerabilities in AEM deployments. These steps go beyond generic advice by focusing on input sanitization, privilege management, and layered defenses tailored to AEM environments.