CVE-2026-86723

AVideo through c3edcc274c389816d434acadac07ee78eaf330c1 contains an authentication bypass vulnerability in LoginControl::verifyChallenge() that uses loose comparison (==) instead of strict comparison (===) against unset session values. Attackers with only a password can submit an empty request to verifyChallenge.json.php to bypass PGP two-factor authentication and gain full authenticated access.

CVSS v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/WWBN/AVideo/security/advisories/GHSA-vmpj-f3mf-q4j2
https://www.vulncheck.com/advisories/avideo-logincontrol-pgp-authentication-bypass-via-verifychallenge

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-08 16:18

Updated : 2026-09-08 19:53

NVD link : CVE-2026-86723

Mitre link : CVE-2026-86723

CVE.ORG link : CVE-2026-86723

JSON object : View

Products Affected

No product.

CWE

CWE-287

Improper Authentication

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