CVE-2024-26040 in Experience Manager
Summary
by MITRE • 03/18/2024
Adobe Experience Manager versions 6.5.19 and earlier are affected by a stored Cross-Site Scripting (XSS) vulnerability that could be abused by an 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 • 04/16/2025
Adobe Experience Manager versions 6.5.19 and earlier contain a 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, specifically classified as a stored XSS flaw where malicious input is permanently stored on the server and subsequently served to other users. The vulnerability manifests when attackers exploit form fields within the AEM interface, allowing them to inject malicious JavaScript code that persists in the application's database or storage mechanisms.
The technical implementation of this vulnerability occurs when user input submitted through forms is not properly sanitized or validated before being stored and rendered back to users. When administrators or other users view pages containing these stored malicious payloads, the injected scripts execute in their browser context, potentially leading to unauthorized actions, session hijacking, or data exfiltration. The stored nature of this vulnerability means that the malicious code remains persistent and can affect multiple users over time, making it particularly dangerous for administrative interfaces where sensitive operations occur.
The operational impact of CVE-2024-26040 extends beyond simple script execution, as it can enable attackers to perform privilege escalation, access sensitive administrative functions, or compromise entire user sessions through session hijacking techniques. Attackers can leverage this vulnerability to target administrators who may have elevated privileges within the AEM environment, potentially leading to complete system compromise. The vulnerability is particularly concerning in enterprise environments where AEM is used for managing sensitive customer data, digital assets, and business-critical content management operations.
Organizations should implement immediate mitigation strategies including applying the latest security patches from Adobe, implementing robust input validation and sanitization mechanisms, and deploying web application firewalls to detect and block malicious payloads. The vulnerability aligns with ATT&CK technique T1566.001 for initial access through malicious content and T1059.007 for command and scripting interpreter through scripting. Security teams should also conduct comprehensive security assessments of all AEM installations and implement monitoring solutions to detect anomalous script execution patterns. Regular security training for administrators and developers on secure coding practices remains essential to prevent similar vulnerabilities in custom AEM implementations and extensions.