CVE-2026-3404 | thinkgem JeeSite up to 5.15.1 Endpoint CasOutHandler.java xml external entity reference (EUVD-2026-9137)
A vulnerability was found in thinkgem JeeSite up to 5.15.1. It has been declared as problematic. Impacted is an unknown function of the file /com/jeesite/common/shiro/cas/CasOutHandler.java of the component Endpoint. Executing a manipulation can lead to xml external entity reference.
This vulnerability appears as CVE-2026-3404. The attack may be performed from remote. In addition, an exploit is available.
The vendor was contacted early about this disclosure but did not respond in any way.