CVE-2025-64593 is a stored Cross-Site Scripting (XSS) vulnerability identified in Adobe Experience Manager (AEM) versions 6.5.23 and earlier. This vulnerability arises from insufficient sanitization of user input in certain form fields, allowing a low-privileged attacker to inject malicious JavaScript code that is persistently stored on the server. When a victim user accesses the affected page, the malicious script executes in their browser context. The attack vector is network-based, requiring the attacker to submit crafted input via vulnerable forms, with the victim needing to interact by visiting the compromised page. The vulnerability impacts confidentiality and integrity by potentially enabling session hijacking, credential theft, or unauthorized actions performed on behalf of the user. The CVSS 3.1 base score is 5.4, indicating medium severity, with the vector string AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N reflecting network attack vector, low attack complexity, low privileges required, user interaction needed, scope changed, and partial confidentiality and integrity impacts without availability impact. No patches or exploits are currently publicly available, but the vulnerability is published and should be addressed promptly. Stored XSS in AEM is particularly critical given its widespread use in enterprise content management and digital experience platforms, often hosting sensitive corporate and customer data. Attackers exploiting this flaw could compromise user sessions or manipulate content, leading to reputational damage and potential regulatory consequences.

For European organizations, the impact of CVE-2025-64593 can be significant due to the widespread use of Adobe Experience Manager in public sector websites, e-commerce platforms, and corporate digital services. Exploitation could lead to theft of user credentials, session tokens, or other sensitive information, enabling further compromise of internal systems or unauthorized transactions. The integrity of web content could be undermined, damaging trust and brand reputation. Additionally, organizations subject to GDPR and other data protection regulations may face compliance risks if personal data is exposed or manipulated. The requirement for user interaction limits automated mass exploitation but targeted phishing or social engineering campaigns could increase risk. The vulnerability could also be leveraged as a foothold for more advanced attacks within the victim’s network. The absence of known exploits currently provides a window for mitigation before active exploitation occurs.

1. Monitor Adobe’s security advisories closely and apply official patches or updates for Adobe Experience Manager as soon as they become available. 2. Implement strict input validation and output encoding on all user-supplied data in AEM forms to prevent injection of malicious scripts. 3. Deploy Content Security Policy (CSP) headers to restrict the execution of untrusted scripts and reduce the impact of XSS attacks. 4. Conduct regular security assessments and penetration testing focused on web application vulnerabilities, including stored XSS. 5. Educate users and administrators about the risks of social engineering and encourage cautious behavior when interacting with web content. 6. Use web application firewalls (WAFs) with rules designed to detect and block XSS payloads targeting AEM. 7. Review and minimize privileges of users who can submit content to reduce the attack surface. 8. Employ security monitoring and logging to detect suspicious activities related to script injection or anomalous user behavior.