CRITICAL 9.3 NVD
CVE-2026-111626
Webreaper Damselfly through 4.5.3 contains an authentication bypass vulnerability that allows unauthenticated attackers to access all /api/* routes because cont
Webreaper Damselfly through 4.5.3 contains an authentication bypass vulnerability that allows unauthenticated attackers to access all /api/* routes because controller authorization attributes are commented out. Attackers can send PUT /api/users with Admin roles to create administrator accounts, or POST /api/users to reset any user's password, gaining full control.
References
- https://github.com/Webreaper/Damselfly/blob/4.5.3/Damselfly.Web.Server/Controllers/UserMan
- https://github.com/Webreaper/Damselfly/blob/4.5.3/Damselfly.Web.Server/Program.cs#L238-L24
- https://github.com/Webreaper/Damselfly/issues/409
- https://hackmd.io/@hieuPenguinnn/damselfly-api-missing-authorization
- https://www.vulncheck.com/advisories/webreaper-damselfly-through-4.5.3-missing-authenticat
This critical severity vulnerability with a CVSS score of 9.3 was published on 2026-10-16 via NVD.
Risk Timeline
CVE Disclosed2026-10-16 · -1 days ago
Remediation Resources
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