{"id":"CVE-2026-111626","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-111626","generatedAt":"2026-10-28T03:26:04.724Z","title":"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.","description":"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.","published":"2026-10-16T18:17:43.000Z","lastModified":"2026-10-16T22:17:21.000Z","status":"Deferred","sourceIdentifier":"disclosure@vulncheck.com","cvss":{"version":"4.0","score":9.3,"severity":"CRITICAL","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-306"],"affected":[],"epss":{"score":0.00445,"percentile":0.38459,"date":"2026-10-26","history":[{"date":"2026-10-17","score":0.00445,"percentile":0.37278}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.45%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-16T18:17:43.000Z","detail":{"score":"9.3","severity":"CRITICAL","publishedAt":"2026-10-16T18:17:42.583Z"},"summary":"New CVE, critical severity (CVSS 9.3)."}],"references":[{"url":"https://github.com/Webreaper/Damselfly/blob/4.5.3/Damselfly.Web.Server/Controllers/UserManagementController.cs#L8-L53","source":"disclosure@vulncheck.com"},{"url":"https://github.com/Webreaper/Damselfly/blob/4.5.3/Damselfly.Web.Server/Program.cs#L238-L242","source":"disclosure@vulncheck.com"},{"url":"https://github.com/Webreaper/Damselfly/issues/409","source":"disclosure@vulncheck.com"},{"url":"https://hackmd.io/@hieuPenguinnn/damselfly-api-missing-authorization","source":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/webreaper-damselfly-through-4.5.3-missing-authentication-on-rest-api-controllers","source":"disclosure@vulncheck.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-111626","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}