CVE-2026-13332

Masteriyo LMS < 2.3.1 - Unauthenticated Arbitrary User Session Termination (Denial of Service)

Critical · published July 27, 2026

CVSS v3.1
9.1
EPSS
0%
Percentile
35.0
In the wild
Unconfirmed
What it is

The Masteriyo LMS WordPress plugin before 2.3.1 does not correctly verify authorization on an unauthenticated AJAX action used to clear user sessions, allowing unauthenticated attackers to terminate the active sessions (force-logout) of any user on the site, including administrators.

The record
Technical detail
CVSS v3.1
9.1 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00418 · 35.0th percentile
Published
2026-07-27T06:00Z
EPSS history
Timeline
  • 27 JUL 06:00Z
    Masteriyo LMS < 2.3.1 - Unauthenticated Arbitrary User Session Termination (Denial of Service)
    cvelistv5