CVE-2026-31272

PoC —

CVSS 3.1

9.8 critical

EPSS

<1%p46

Published

Apr 7, 2026 (Apr 7, 2026)

Modified

Jun 17, 2026

Description

MRCMS 3.1.2 contains an access control vulnerability. The save() method in src/main/java/org/marker/mushroom/controller/UserController.java lacks proper authorization validation, enabling direct addition of super administrator accounts without authentication.

Vendors: mrcms
Products: mrcms
Weakness: CWE-284
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (0.6%)

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