{"id":"CVE-2026-91966","title":"AVideo through 29.0 contains an unauthenticated server-side request forgery vulnerability in the check_site_availability function that accepts attacker-controlled HTTP Host headers","summary":"AVideo through 29.0 contains an unauthenticated server-side request forgery vulnerability in the check_site_availability function that accepts attacker-controlled HTTP Host headers. Attackers can send requests to submitIndex.php or ajax.…","severity":"medium","cvss":5.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N","cwe":["CWE-918"],"vendor":"WWBN","product":"AVideo","affected":["AVideo <= 29.0"],"published":"2026-09-15","updated":"2026-09-20","sourceUpdated":"2026-09-20T01:16:34.360","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-91966","references":[{"url":"https://github.com/WWBN/AVideo/security/advisories/GHSA-rqg6-qcjv-55w5","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/avideo-through-29.0-unauthenticated-ssrf-via-host-header","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org","exploit-available"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"yes","technicalImpact":"partial","timestamp":"2026-09-20T00:29:28.477819Z"},"epss":0.00383,"epssPercentile":0.32095,"ingestedAt":"2026-09-15T15:39:12.915Z","slug":"CVE-2026-91966","body":"## Overview\n\nAVideo through 29.0 contains an unauthenticated server-side request forgery vulnerability in the check_site_availability function that accepts attacker-controlled HTTP Host headers. Attackers can send requests to submitIndex.php or ajax.php with arbitrary Host headers to probe internal network hosts and ports, following redirects without authentication.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":44,"depthScoreParts":{"impact":31.9,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":207847,"id":"CVE-2026-91966","ts":1789866747455,"field":"exploit_available","old":"false","new":"true"}]}