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VulnerabilityPublished

CVE-2026-13332: Masteriyo LMS (WordPress plugin) · Improper Authentication

Affects Masteriyo LMS (WordPress plugin)Source CVE Database V5

0

Not known to be exploited · CVSS 9.1 Critical : upgrade to 2.3.1 as a priority.

Data as of 27 Oct 2026, 05:11 UTC

CVSS 3.1 base score
9.1Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 35% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 2.3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 27 Jul 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade Masteriyo LMS (WordPress plugin) to 2.3.1.

Affected software

ProductAffectedFixed in
Masteriyo LMSAffected
  • <2.3.1
Fixed in
  • 2.3.1

AI-suggested

If you cannot patch yet, restrict access to the AJAX endpoint if possible or implement additional access controls to prevent unauthenticated session termination.

Description

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.

References

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