{"id":"CVE-2026-33492","summary":"AVideo has Session Fixation via GET PHPSESSID Parameter With Disabled Login Session Regeneration","details":"WWBN AVideo is an open source video platform. In versions up to and including 26.0, AVideo's `_session_start()` function accepts arbitrary session IDs via the `PHPSESSID` GET parameter and sets them as the active PHP session. A session regeneration bypass exists for specific blacklisted endpoints when the request originates from the same domain. Combined with the explicitly disabled session regeneration in `User::login()`, this allows a classic session fixation attack where an attacker can fix a victim's session ID before authentication and then hijack the authenticated session. Commit 5647a94d79bf69a972a86653fe02144079948785 contains a patch.","aliases":["GHSA-x3pr-vrhq-vq43"],"modified":"2026-04-10T05:42:48.802371Z","published":"2026-03-23T15:25:27.288Z","database_specific":{"cna_assigner":"GitHub_M","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33492.json","cwe_ids":["CWE-384"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33492.json"},{"type":"FIX","url":"https://github.com/WWBN/AVideo/commit/5647a94d79bf69a972a86653fe02144079948785"},{"type":"ADVISORY","url":"https://github.com/WWBN/AVideo/security/advisories/GHSA-x3pr-vrhq-vq43"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33492"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/wwbn/avideo","events":[{"introduced":"0"},{"last_affected":"aee1e11ee8d9343f87b7643e49cc32924b07979b"}],"database_specific":{"versions":[{"introduced":"0"},{"last_affected":"26.0"}]}}],"versions":["10.8","11","11.1","11.1.1","11.5","11.6","12.4","14.3","14.3.1","18.0","2.2","2.7","21.0","22.0","24.0","25.0","26.0","3.4","4.0","7.2","7.3","7.4","7.6","7.7","7.8","8.1","8.5","8.6","8.7","8.9","8.9.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-33492.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N"}]}