CVE-2026-31271
Critical
Description
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.
SeverityCritical
CVSS9.8
Exploit probability—
ProductMegagao Production Ssm
PublishedApr 7, 2026
First seenApr 7, 2026
Weakness typeCWE-288CWE-288
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| megagao production_ssm | 1.0 | — |
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