CVE-2026-108812: SEMCMS SEMCMS_User.php user improper authorization

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-12 · updated 2026-10-15
Weakness: CWE-266

Description

A security vulnerability has been detected in SEMCMS up to 5.0. The impacted element is an unknown function of the file /admin/SEMCMS_User.php?Class=Deleted&CF=user. Such manipulation leads to improper authorization. The attack may be performed from remote. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

SEMCMS: 5.0

References

https://github.com/ants01/semcmsPHP-V5.0-There-is-an-unauthorized-deletion-of-arbitrary-users.
https://vuldb.com/cve/CVE-2026-108812
https://vuldb.com/submit/964027
https://vuldb.com/vuln/416589
https://vuldb.com/vuln/416589/cti

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