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Description

A flaw has been found in thinkgem JeeSite up to 5.15.1. 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. The attack may be performed from remote. Attacks of this nature are highly complex. The exploitability is considered difficult. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

PUBLISHED Reserved 2026-03-01 | Published 2026-03-02 | Updated 2026-03-02 | Assigner VulDB




LOW: 2.3CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
MEDIUM: 5.0CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
MEDIUM: 5.0CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
4.6AV:N/AC:H/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR

Problem types

XML External Entity Reference

Externally Controlled Reference

Product status

5.15.0
affected

5.15.1
affected

Timeline

2026-03-01:Advisory disclosed
2026-03-01:VulDB entry created
2026-03-01:VulDB entry last update

Credits

Saul1213 (VulDB User) reporter

VulDB coordinator

References

vuldb.com/?id.348299 (VDB-348299 | thinkgem JeeSite Endpoint CasOutHandler.java xml external entity reference) vdb-entry

vuldb.com/?ctiid.348299 (VDB-348299 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/?submit.763732 (Submit #763732 | Jeesite v5.15.1 XXE) third-party-advisory

www.yuque.com/la12138/pa2fpb/ew8x2qss8dv0bsu0?singleDoc exploit

cve.org (CVE-2026-3404)

nvd.nist.gov (CVE-2026-3404)

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