{"id":"CVE-2026-39369","aliases":["GHSA-f4f9-627c-jh33"],"url":"https://o3.security/vulnerability/CVE-2026-39369","summary":"WWBN AVideo's GIF poster fetch bypasses traversal scrubbing and exposes local files through public media URLs","details":"WWBN AVideo is an open source video platform. In versions 26.0 and prior, objects/aVideoEncoderReceiveImage.json.php allowed an authenticated uploader to fetch attacker-controlled same-origin /videos/... URLs, bypass traversal scrubbing, and expose server-local files through the GIF poster storage path. The vulnerable GIF branch could be abused to read local files such as /etc/passwd or application source files and republish those bytes through a normal public GIF media URL.","published":"2026-04-07T19:24:33.421Z","modified":"2026-08-07T11:51:01.027896647Z","cvss":{"score":7.6,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"WWBN/AVideo","fixedVersion":null}],"fix":{"url":"https://github.com/WWBN/AVideo/commit/2375eb5e0a6d3cbcfb05377657d0820a7d470b1d","label":"WWBN/AVideo@2375eb5"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/39xxx/CVE-2026-39369.json"},{"type":"ADVISORY","url":"https://github.com/WWBN/AVideo/security/advisories/GHSA-f4f9-627c-jh33"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-39369"},{"type":"FIX","url":"https://github.com/WWBN/AVideo/commit/2375eb5e0a6d3cbcfb05377657d0820a7d470b1d"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T11:51:01.027896647Z"}}