{"id":"CVE-2026-50886","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-50886","summary":"Project Firefly III has incorrect access control in the webhook management component","details":"Incorrect access control in the webhook management component of Project Firefly III v6.5.9 allows attackers to scan internal resources via a crafted POST request.","published":"2026-06-15T21:30:41Z","modified":"2026-08-27T16:45:10.034759129Z","cvss":{"score":9.1,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"grumpydictator/firefly-iii","fixedVersion":null}],"fix":null,"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-50886"},{"type":"WEB","url":"https://gist.github.com/pyuysig/f5395f90753ba652835ba9c6abf4c4ae"},{"type":"PACKAGE","url":"https://github.com/firefly-iii/firefly-iii"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-27T16:45:10.034759129Z"}}