EUVD-2026-35708
GHSA-237c-j3j9-42ww
Severity by source
AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Lifecycle Timeline
1DescriptionCVE.org
Adobe Experience Manager versions 6.5.24, LTS SP1, 2026.04 and earlier are affected by a DOM-based Cross-Site Scripting (XSS) vulnerability. An attacker could exploit this issue by manipulating the DOM environment to execute malicious JavaScript within the context of the victim's browser. Exploitation of this issue requires user interaction in that a victim must visit a crafted webpage. Scope is changed.
AnalysisAI
DOM-based XSS in Adobe Experience Manager (AEM) versions up to 6.5.24, LTS SP1, and 2026.04 allows an authenticated low-privileged attacker to inject malicious JavaScript that executes entirely within the victim's browser via client-side DOM manipulation. The changed scope (S:C) in the CVSS vector means successful exploitation can reach session tokens, cookies, or resources beyond the directly vulnerable AEM component - a meaningful risk amplifier in enterprise content authoring environments. Exploitation requires user interaction (UI:R), meaning the attacker must social-engineer a victim into visiting a crafted webpage. No public exploit identified at time of analysis, and CISA KEV listing has not been confirmed.
Technical ContextAI
DOM-based XSS (CWE-79) differs from reflected or stored XSS in that the malicious payload is never processed by the server - it is written directly into the browser's live DOM by vulnerable client-side JavaScript, bypassing server-side input validation entirely. Adobe Experience Manager is a Java-based enterprise CMS built on Apache Sling and OSGi, widely used for large-scale web content authoring and digital asset management. Its rich authoring UI relies heavily on JavaScript frameworks that interact with the DOM, creating a broad surface area for DOM-based injection if unsanitized data flows into sink functions such as innerHTML, document.write, or eval. The CVSS scope change (S:C) reflects the browser-context nature of XSS: once code executes in the victim's browser, it can interact with the AEM session, same-origin resources, and potentially stored credentials. Affected versions span both the on-premise 6.5.x LTS line and the AEM as a Cloud Service (AEMaaCS) 2026.04 release stream per EUVD-2026-35708.
RemediationAI
Apply the fix documented in Adobe Security Bulletin APSB26-56 at https://helpx.adobe.com/security/products/experience-manager/apsb26-56.html. The exact patched Service Pack version for AEM 6.5.x is not independently confirmed in the available intelligence data beyond the advisory reference - consult APSB26-56 directly for the specific cumulative fix package or Service Pack number. AEM as a Cloud Service customers should verify their environment has received the 2026.05 or later automatic update. As a compensating control pending patching, restrict AEM author environment access to internal networks or VPN only, which eliminates the externally reachable attack surface required by the network-vector (AV:N) exploit path - note this does not protect against insider threats holding low-privileged accounts. Deploying a strict Content Security Policy (CSP) on AEM pages can limit JavaScript execution to approved sources and reduce XSS impact, but be aware that AEM's authoring UI relies on inline scripts and may require policy tuning to avoid breaking legitimate authoring functionality.
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Same weakness CWE-79 – Cross-site Scripting (XSS)
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External POC / Exploit Code
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