CVE-2026-31271

critical · 9.8

megagao production_ssm v1.0 contains an authorization bypass vulnerability in the user addition functionality. The insert() method in UserController.java lacks authentication checks, allowing unauthenticated attackers to create super administrator accounts by directly accessing the /user/insert endpoint. This leads to complete system compromise.

9.8

CVSS

0.6%

EPSS (exploit prob.)

45th

EPSS percentile

2026-04-07

Published

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

Weaknesses

CWE-288

References

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

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-31271