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CVE-2026-31271 - Vulnerability Analysis

CriticalCVSS: 9.8

Last Updated: April 9, 2026

megagao production_ssm - Authorization Bypass

Published: April 7, 2026Updated: April 9, 2026Remote Exploitable

Overview

megagao production_ssm v1.0 contains an authorization bypass caused by missing authentication checks in UserController.java insert() method, letting unauthenticated attackers create super administrator accounts, exploit requires no authentication.

Severity & Score

Severity: Critical

CVSS Score: 9.8

Impact

Unauthenticated attackers can create super administrator accounts, leading to complete system compromise.

Mitigation

Update to the latest version with proper authentication checks on user addition functionality.

References

https://github.com/clockw1se0v0/Vul/blob/main/production_ssm/Unauthorized.md

Related Resources

Details

CVE ID: CVE-2026-31271
Severity: Critical
CVSS Score: 9.8
Type: broken_access_control
Status: unconfirmed

CWE

CWE-288

CVSS Metrics

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