CVE-2026-86723CWE-287

CVE-2026-86723

High · published September 8, 2026

CVSS v3.1
8.1
EPSS
0%
Percentile
40.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
8.6 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
EPSS
0.00475 · 40.1th percentile
Weakness
CWE-287 · Improper Authentication
Published
2026-09-08T20:18Z
References (2)
https://github.com/WWBN/AVideo/security/advisories/GHSA-vmpj-f3mf-q4j2 · [email protected]https://www.vulncheck.com/advisories/avideo-logincontrol-pgp-authentication-bypass-via-verifychallenge · [email protected]
EPSS history
Timeline
  • 10 SEP 03:18Z
    EPSS moved — → 0%
    epss
  • 08 SEP 15:13Z
    AVideo LoginControl PGP Authentication Bypass via verifyChallenge
    cvelistv5