CVE-2026-111626
criticalWebreaper Damselfly through 4.5.3 contains an authentication bypass vulnerability that allows unauthenticated attackers to access all /api/* routes because con…
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/Webreaper/Damselfly/blob/4.5.3/Damselfly.Web.Server/Controllers/UserMan... disclosure@vulncheck.com
- https://github.com/Webreaper/Damselfly/blob/4.5.3/Damselfly.Web.Server/Program.cs#L238-L24... disclosure@vulncheck.com
- https://github.com/Webreaper/Damselfly/issues/409 disclosure@vulncheck.com
- https://hackmd.io/@hieuPenguinnn/damselfly-api-missing-authorization disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/webreaper-damselfly-through-4.5.3-missing-authenticat... disclosure@vulncheck.com