EUVD Vulnerability Catalog
EUVD-2026-123067
Severity: CRITICAL
Base Score: 9.3
CVSS Version: 4.0
Vulnerability Description
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.
CVSS Vector Analysis
Below is the complete, human-readable breakdown of the CVSS metric string: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
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Attack Vector (AV): Network
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Attack Complexity (AC): Low
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Attack Requirements (AT): None
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Privileges Required (PR): None
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User Interaction (UI): None
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Vulnerability Confidentiality Impact (VC): High
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Vulnerability Integrity Impact (VI): High
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Vulnerability Availability Impact (VA): High
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Subsequent Confidentiality Impact (SC): None
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Subsequent Integrity Impact (SI): None
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Subsequent Availability Impact (SA): None
Affected Vendors & Systems
Vendor
WWBN
References & Advisory Links
- https://github.com/WWBN/AVideo/security/advisories/GHSA-9rvm-cfc4-q9g9
- https://github.com/WWBN/AVideo/commit/d34ccf23b37a127a68478d66ac00b450b5788bad
- https://github.com/WWBN/AVideo/blob/v29.7.1/objects/login.json.php#L133-L145
- https://github.com/WWBN/AVideo/blob/v29.7.1/plugin/MobileManager/oauth2.php#L90-L102
- https://www.vulncheck.com/advisories/wwbn-avideo-6.5-through-29.7.1-authentication-bypass-via-hybridauth-social-login
Metadata Profile
Database Authority
European Union Agency for Cybersecurity (ENISA) EUVD
Assigner
VulnCheck
EPSS Probability
0.75
Known Aliases
CVE-2026-126542
GHSA-r23m-jf94-h653
Published On
2026-11-11
Last Updated
2026-11-14