{"id":"CVE-2026-84479","title":"WWBN AVideo (current e01e41ecc and earlier) makes three login-time security controls depend solely on the client-supplied User-Agent header","summary":"WWBN AVideo (current e01e41ecc and earlier) makes three login-time security controls depend solely on the client-supplied User-Agent header. The isAVideoEncoder()/isAVideoMobileApp() checks match HTTP_USER_AGENT against a hardcoded liter…","severity":"critical","cvss":9.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","cwe":["CWE-290"],"published":"2026-09-01","updated":"2026-09-08","sourceUpdated":"2026-09-08T20:18:59.270","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-84479","references":[{"url":"https://github.com/WWBN/AVideo/security/advisories/GHSA-m9m3-gwh2-337c","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/wwbn-avideo-authentication-bypass-via-user-agent-header","label":"disclosure@vulncheck.com"},{"url":"https://github.com/WWBN/AVideo/security/advisories/GHSA-m9m3-gwh2-337c","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd"],"epss":0.00317,"epssPercentile":0.24924,"ingestedAt":"2026-09-08T21:11:12.289Z","slug":"CVE-2026-84479","body":"## Overview\n\nWWBN AVideo (current e01e41ecc and earlier) makes three login-time security controls depend solely on the client-supplied User-Agent header. The isAVideoEncoder()/isAVideoMobileApp() checks match HTTP_USER_AGENT against a hardcoded literal (\"AVideoEncoder\"/\"AVideoMobileApp\") with no IP check or shared secret. An attacker who submits valid credentials and sets User-Agent: AVideoEncoder bypasses two-factor authentication, skips brute-force captcha escalation, and avoids being recorded in the login/device audit history. No patch is available at the time of publication.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":50,"depthScoreParts":{"impact":50.1,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}