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Vulnerabilities

Vulnerability · CVE-2026-31272

MRCMS 3.1.2 contains an access control vulnerability.

Published Apr 7, 2026 · catalog updated Jun 17, 2026 · MRCMS 3.1.2 contains an

Check if you run it

No confirmed exploitation is on record for CVE-2026-31272. EPSS is 0.65%. Act only if a listed version of MRCMS 3.1.2 contains an is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (MRCMS 3.1.2 contains an).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Critical9.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.65%
Remediation
Not established
Affected products
cpe mrcms/mrcms

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe mrcms/mrcms3.1.2

How to fix CVE-2026-31272

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-31272. EPSS is 0.65%. Act only if a listed version of MRCMS 3.1.2 contains an is installed.

Which versions are affected?

Compare what you have installed with 3.1.2. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-284: Improper Access Control. EPSS 0.65%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 7, 2026 · NIST NVD

    Detected

    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.

  2. Jun 17, 2026 · NIST NVD

    Updated

    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.

Sources

  • CVE.orgVulnerability recordCVE-2026-31272

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-31272

    30-day exploitation probability 0.6%

    first.org
  • NIST NVDVulnerability recordCVE-2026-31272

    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.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.