CVE-2026-108812

SEMCMS SEMCMS_User.php user improper authorization

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

SEMCMS

CVSS v4.0 VULDB

5.5 MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1 VULDB

6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

CVSS v2.0 VULDB

6.4 MEDIUMAV:N/AC:L/Au:N/C:N/I:P/A:P

EPSS

0.31% chance of exploitation in the next 30 days, 22nd percentile

Published

2026-10-12

Updated

2026-10-15

Proof-of-concept exploits (1)

• ants01/semcmsPHP-V5.0-There-is-an-unauthorized-deletion-of-arbitrary-users.0★ · 2026-09-08

References

• CVE Record
• NVD entry

Related

• CVE-2026-108811
• CVE-2026-108813
• CVE-2026-108814
• CVE-2026-108815