CVE-2026-31272 — CRITICAL (9.8)

Vulnerability 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.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Mrcms	Mrcms	3.1.2

Related Weaknesses (CWE)

CWE-284

References

https://github.com/clockw1se0v0/Vul/blob/main/MRCMS/Unauthorized.mdExploitThird Party Advisory

FAQ

What is CVE-2026-31272?

CVE-2026-31272 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 addit...

How severe is CVE-2026-31272?

CVE-2026-31272 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2026-31272?

Check the references section above for vendor advisories and patch information. Affected products include: Mrcms Mrcms.