CVE-2025-64616 is a stored Cross-Site Scripting (XSS) vulnerability identified in Adobe Experience Manager (AEM) versions 6.5.23 and earlier. Stored XSS occurs when malicious scripts are permanently injected into a web application’s data store, such as form fields, and later rendered in users’ browsers. In this case, a low-privileged attacker can exploit vulnerable form fields to insert JavaScript code that executes when other users access the affected page. The vulnerability impacts confidentiality and integrity by enabling attackers to steal session cookies, perform actions on behalf of users, or manipulate displayed content. The CVSS 3.1 vector (AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N) indicates network attack vector, low attack complexity, requiring low privileges and user interaction, with a scope change and partial impact on confidentiality and integrity but no impact on availability. No patches or exploits are currently publicly available, but the vulnerability is published and should be addressed promptly. Adobe Experience Manager is widely used by enterprises for web content management, making this vulnerability significant for organizations relying on AEM for digital presence. The vulnerability underscores the importance of secure input validation, output encoding, and the implementation of Content Security Policies to reduce XSS risks.

For European organizations, this vulnerability poses a risk to the confidentiality and integrity of web applications hosted on Adobe Experience Manager. Attackers exploiting this flaw can hijack user sessions, steal sensitive information, or perform unauthorized actions, potentially leading to data breaches or reputational damage. Given AEM’s use in government portals, financial institutions, and large enterprises across Europe, exploitation could disrupt critical services or expose personal data protected under GDPR. The requirement for user interaction and low privileges lowers the barrier for exploitation but limits automated mass attacks. However, targeted phishing or social engineering campaigns could increase risk. The vulnerability does not affect availability directly but can undermine trust in affected services. Organizations with public-facing AEM instances are particularly vulnerable, especially those with high user traffic or sensitive data processing.

European organizations should immediately verify their Adobe Experience Manager versions and plan for an upgrade beyond 6.5.23 once Adobe releases a patch. In the interim, implement strict input validation and sanitization on all form fields to prevent script injection. Deploy Content Security Policies (CSP) to restrict the execution of unauthorized scripts and reduce the impact of potential XSS payloads. Conduct thorough code reviews and penetration testing focused on XSS vulnerabilities within AEM customizations. Educate users about phishing risks and suspicious links that could trigger malicious scripts. Monitor web application logs for unusual activity or script injection attempts. Consider using web application firewalls (WAFs) with XSS detection rules tailored for AEM environments. Finally, maintain an incident response plan to quickly address any exploitation attempts.