Executive brief
Adobe Experience Manager, a platform used by organizations to manage digital content and assets, is affected by a security flaw that allows unauthorized script injection. An attacker with basic access can insert malicious code into website forms, which then runs in the browsers of other users or administrators who view those pages. This could lead to unauthorized actions being performed on behalf of users or the theft of sensitive session information.
Technical details
A stored Cross-Site Scripting (XSS) vulnerability (CWE-79) exists in Adobe Experience Manager due to improper neutralization of input during web page generation. A low-privileged attacker can exploit this by submitting malicious JavaScript into vulnerable form fields. Because the payload is stored on the server, the script executes in the context of any user who subsequently views the affected page. The vulnerability has a CVSS score of 5.4, reflecting that while it requires low privileges and user interaction, the 'Scope' is changed, potentially impacting other components. Users are advised to update to the latest versions as specified in Adobe advisory APSB26-56.
Affected products
- Adobe Experience Manager 6.5.24, LTS SP1, 2026.04 and earlier
Timeline
- 2026-06-09: disclosed
- 2026-06-09: advisory