CVE-2025-46906 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 user accesses the affected page containing the injected script, the malicious code executes in their browser context. The vulnerability arises due to insufficient input sanitization or output encoding of user-supplied data in form fields, enabling persistent script injection. The attack vector requires the attacker to have some level of authenticated access (low privilege) and user interaction, as the victim must visit the compromised page for the script to execute. The CVSS 3.1 base score is 5.4 (medium severity), reflecting network attack vector, low attack complexity, low privileges required, user interaction needed, and partial impact on confidentiality and integrity but no impact on availability. The vulnerability’s scope is changed (S:C), indicating that the attack can affect resources beyond the vulnerable component, potentially impacting other users or systems. No known exploits are currently reported in the wild, and no official patches are linked yet. Stored XSS in AEM can lead to session hijacking, credential theft, defacement, or further exploitation within the affected web application environment.

For European organizations using Adobe Experience Manager, this vulnerability poses a significant risk to the confidentiality and integrity of their web applications and user data. A successful exploit could allow attackers to steal session cookies, impersonate users, or perform unauthorized actions within the AEM environment. This is particularly concerning for organizations managing sensitive content, customer data, or internal portals via AEM. The persistent nature of stored XSS means that malicious scripts remain active until removed, potentially affecting multiple users over time. Given AEM’s widespread use in enterprise content management across Europe, exploitation could lead to reputational damage, regulatory non-compliance (e.g., GDPR breaches due to data exposure), and operational disruptions. Although availability is not impacted, the compromise of user trust and data confidentiality can have severe business consequences. The requirement for low privilege and user interaction lowers the barrier for exploitation, increasing the threat surface for European entities relying on vulnerable AEM versions.

European organizations should immediately audit their Adobe Experience Manager deployments to identify affected versions (6.5.22 and earlier). Until an official patch is released, implement strict input validation and output encoding on all form fields within AEM to prevent script injection. Employ Web Application Firewalls (WAFs) with custom rules to detect and block suspicious payloads targeting form inputs. Limit user privileges to the minimum necessary to reduce the risk posed by low-privileged attackers. Conduct regular security training to raise awareness about phishing or social engineering that could lead users to malicious pages. Monitor logs for unusual activity or repeated form submissions that could indicate exploitation attempts. Once Adobe releases a security update, prioritize patching to fully remediate the vulnerability. Additionally, consider implementing Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts within AEM-hosted pages. Regularly review and sanitize stored content to remove any injected malicious scripts.