{"id":"CVE-2026-90543","title":"WWBN AVideo at commit c3edcc274c389816d434acadac07ee78eaf330c1 and earlier, with the Live plugin enabled, contains a missing authentication vulnerability in plugin/Live/socketMessageLiveOwner.json.php","summary":"WWBN AVideo at commit c3edcc274c389816d434acadac07ee78eaf330c1 and earlier, with the Live plugin enabled, contains a missing authentication vulnerability in plugin/Live/socketMessageLiveOwner.json.php. The script reads the `key` and `msg…","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","cwe":["CWE-306"],"vendor":"WWBN","product":"AVideo","affected":["AVideo <= c3edcc274c389816d434acadac07ee78eaf330c1"],"published":"2026-09-12","updated":"2026-09-14","sourceUpdated":"2026-09-14T21:07:11.883","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-90543","references":[{"url":"https://github.com/WWBN/AVideo/security/advisories/GHSA-wcg2-x62c-m28x","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/wwbn-avideo-missing-authentication-via-socketmessageliveowner-json-php","label":"disclosure@vulncheck.com"},{"url":"https://github.com/WWBN/AVideo/security/advisories/GHSA-vr35-39vf-9qp9","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"epss":0.00347,"epssPercentile":0.28388,"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"yes","technicalImpact":"partial","timestamp":"2026-09-14T18:26:52.625998Z"},"ingestedAt":"2026-09-14T15:23:07.479Z","slug":"CVE-2026-90543","body":"## Overview\n\nWWBN AVideo at commit c3edcc274c389816d434acadac07ee78eaf330c1 and earlier, with the Live plugin enabled, contains a missing authentication vulnerability in plugin/Live/socketMessageLiveOwner.json.php. The script reads the `key` and `msg` parameters from $_REQUEST, resolves the stream owner via LiveTransmition::keyExists, and verifies that the stream owner (not the caller) is an administrator; it performs no User::isLogged() check and enforces no CSRF token. As a result, an unauthenticated remote attacker who knows an administrator's Live stream key can call sendSocketSuccessMessageToUsers_id and deliver arbitrary in-app/socket notification messages to that administrator. The issue was unpatched at the time of publication.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":29.2,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":203174,"id":"CVE-2026-90543","ts":1789413242664,"field":"exploit_available","old":"false","new":"true"}]}