What is the CVSS score of CVE-2026-13332?

CVE-2026-13332 has a CVSS 3.1 base score of 9.1 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N. EPSS exploitation probability: 0.2%.

Is there a public PoC exploit available for CVE-2026-13332?

Yes, a public proof-of-concept exploit is available for CVE-2026-13332. Prioritise patching immediately. EPSS: 0.2%.

Is there a patch available for CVE-2026-13332?

Yes, a patch is available for CVE-2026-13332. Update the affected software to the latest version immediately.

Masteriyo Lms CVE-2026-13332

EUVD-2026-49070 CRITICAL

Improper Authentication (CWE-287)

2026-07-27 WPScan

GHSA-h98r-h4wc-7hjr

WordPress Authentication Bypass Masteriyo Lms Unknown

9.1

CVSS 3.1 · Vendor: WPScan

View

Vulnerability Assessment

Weakness

CWE

CWE-287

OWASP Top 10:2025

A07:2025 - Authentication Failures

ASVS 5.0

V6 - Authentication Authentication mechanism validation

MITRE ATT&CK

2 techniques across 2 tactics: Defense Evasion, Initial Access

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Act Now Prioritize within 24-48h. Why: CRITICAL severity + public POC available.

Patch available 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Jul 28, 2026

Unauthenticated arbitrary user session termination (force-logout) in the Masteriyo LMS WordPress plugin before version 2.3.1 allows remote attackers to log out any site user, including administrators, via an insecure AJAX action. Publicly available exploit code exists, but no active exploitation has been confirmed by CISA KEV. The high CVSS score from NVD likely overstates impact, as the flaw only disrupts sessions without exposing data.

Affected VersionsENISA

Masteriyo LMS 0 <2.3.1

Affected Packages

euvd masteriyo_lms fix: 2.3.1

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (WPScan) PRIMARY 9.1 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Primary rating from Vendor (WPScan) · only source for this CVE.

CVSS VectorVendor: WPScan

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Lifecycle Timeline

Patch available

Jul 27, 2026 - 07:01 EUVD

CVE Published

Jul 27, 2026 - 06:00 cve.org

UNKNOWN (no severity yet)

CVE Published

Jul 27, 2026 - 06:00 cve.org

CRITICAL 9.1

DescriptionCVE.org

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.

Threat Intelligence Overview

EPSS Score

0.2%

Top 85% exploitable

Exploit

POC

Public exploit code exists

Data Quality

4 sources

Confidence: Medium

EUVD

NVD

CVE.org

EPSS

Vulnrichment

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity CRITICAL

CISA KEV No

Public POC Yes

EPSS 0.2%

Patch available Yes

Active threat No

Deciding rule

CRITICAL severity + public POC available

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation

Poc

System Exposure· derived

Open

Automatable

Yes

Human Impact· derived

Medium

Technical Impact

Total

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +46

PoC: +20

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Authentication Bypass CRITICAL

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

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Stored Cross-Site Scripting in the Masteriyo LMS WordPress plugin before version 3.4.0 allows any user holding the cours

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Enrollment record exposure in the Masteriyo LMS WordPress plugin (versions 1.3.1 through below 3.4.0) lets unauthenticat

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Privilege escalation in the ThemeGrill Masteriyo LMS WordPress plugin (versions up to and including 2.2.0) allows authen

CVE-2026-82850 MEDIUM This Month POC

4.3 Sep 24

Any authenticated user of a WordPress site running the Masteriyo LMS plugin before 3.4.2 can retrieve the correct answer

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CVE-2026-39524 HIGH This Week

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Unauthenticated broken authentication in the Masteriyo LMS WordPress plugin (versions ≤2.1.8) stems from improper JWT si

Same weakness CWE-287 – Improper Authentication

View all

CVE-2022-40684 CRITICAL POC

9.8

CVE-2025-61882 CRITICAL POC

9.8

CVE-2020-0688 HIGH POC

8.8

CVE-2023-46805 HIGH POC

8.2

CVE-2023-35078 CRITICAL POC

9.8

CVE-2015-1187 CRITICAL POC

9.8

CVE-2024-7593 CRITICAL POC

9.8

CVE-2017-7921 CRITICAL POC

9.8

Same technique Authentication Bypass

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CVE-2015-3306 CRITICAL POC

10.0

CVE-2023-22515 CRITICAL POC

9.8

CVE-2012-4681 CRITICAL POC

9.8

CVE-2013-2465 CRITICAL POC

9.8

CVE-2011-3544 CRITICAL POC

9.8

CVE-2024-0012 CRITICAL POC

9.3

References

Advisories & patches

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2026-13332

Search Externally

GitHub PoC

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