CVE-2025-46951 in Experience Manager
Summary
by MITRE • 06/11/2025
Adobe Experience Manager versions 6.5.22 and earlier are affected by a stored Cross-Site Scripting (XSS) vulnerability that could be abused by a low privileged attacker to inject malicious scripts into vulnerable form fields. Malicious JavaScript may be executed in a victim’s browser when they browse to the page containing the vulnerable field.
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Analysis
by VulDB Data Team • 06/13/2025
Adobe Experience Manager versions 6.5.22 and earlier contain a critical stored cross-site scripting vulnerability that represents a significant security risk for organizations relying on this content management platform. This vulnerability falls under the CWE-79 category of Cross-Site Scripting and aligns with the ATT&CK technique T1566.200 for Validating Credentials and T1059.007 for Command and Scripting Interpreter. The flaw exists in the handling of user input within form fields, where insufficient sanitization allows malicious scripts to be permanently stored and subsequently executed when other users interact with the affected pages.
The technical implementation of this vulnerability stems from inadequate input validation and output encoding mechanisms within the AEM form processing components. When low-privileged attackers submit malicious payloads through form fields, the system fails to properly sanitize the input before storing it in the database or content repository. This stored data is then rendered without appropriate context-based encoding when the page is accessed by other users, creating the perfect conditions for XSS exploitation. The vulnerability is particularly concerning because it requires minimal privileges to exploit, making it accessible to users with limited access rights who may not have legitimate administrative capabilities.
The operational impact of this vulnerability extends beyond simple script execution, as it can enable attackers to perform a wide range of malicious activities including session hijacking, credential theft, and data exfiltration. When victims browse to pages containing the vulnerable form fields, their browsers execute the injected JavaScript code in the context of their authenticated sessions, potentially allowing attackers to access sensitive information, modify content, or perform unauthorized actions on behalf of legitimate users. The stored nature of this vulnerability means that the malicious payload persists even after the initial injection, creating a long-term threat that can affect multiple users over extended periods.
Organizations must implement immediate mitigations to address this vulnerability including upgrading to Adobe Experience Manager versions 6.5.23 or later where this issue has been resolved. Additionally, administrators should implement comprehensive input validation mechanisms, enforce strict output encoding for all user-generated content, and deploy web application firewalls to detect and block suspicious payloads. The mitigation strategy should also include regular security assessments of form fields and user input handling components to identify potential injection points. Security teams should consider implementing content security policies and monitoring user activity for unusual input patterns that may indicate attempted exploitation of this vulnerability. Organizations should also review their access control measures to ensure that only authorized users have the ability to submit content to form fields that may be vulnerable to XSS attacks.