Vulnerability DatabaseCVE-2026-126542
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CVE-2026-126542
Published:November 11, 2026
Updated:November 11, 2026
WWBN AVideo 6.5 through 29.7.1 contains an authentication bypass vulnerability that allows unauthenticated attackers to log in as any user via Hybridauth social login display names. Attackers can set their X, Facebook, Yahoo or LinkedIn display name to a victim's username and withhold email, causing login.json.php or oauth2.php to log them in as that account, including administrators, without a password.
Related Resources (8)
https://github.com/WWBN/AVideo/blob/v29.7.1/objects/login.json.php#L133-L145
https://nvd.nist.gov/vuln/detail/CVE-2026-126542
https://github.com/WWBN/AVideo
https://github.com/WWBN/AVideo/blob/v29.7.1/plugin/MobileManager/oauth2.php#L90-L102
https://github.com/WWBN/AVideo/commit/d34ccf23b37a127a68478d66ac00b450b5788bad
https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/126xxx/CVE-2026-126542.json
https://www.vulncheck.com/advisories/wwbn-avideo-6.5-through-29.7.1-authentication-bypass-via-hybridauth-social-login
https://github.com/WWBN/AVideo/security/advisories/GHSA-9rvm-cfc4-q9g9
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CVSS v4
Base Score:
9.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
9.8
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Authentication Bypass by Spoofing
CWE-290