Vulnerabilities

CVE-2026-42743 | BDVDB-2026-340419 Detail

ThemeGrillMasteriyo - LMS

Description#

Unauthenticated Broken Authentication in Masteriyo - LMS <= 2.1.8 versions.

Impact#

CAPEC-115 Authentication Bypass

Weaknesses#

CWE-347 Improper Verification of Cryptographic Signature

References#

https://patchstack.com/database/wordpress/plugin/learning-management-system/vulnerability/wordpress-masteriyo-lms-plugin-2-1-8-broken-authentication-vulnerability?_s_id=cve

Exploit#

No public exploit known

History#

Version 12026-06-15Record published in the CVE List.
Version 22026-06-16Most recent update recorded in the CVE List.

Published

Published: 2026-06-15
Last modified: 2026-06-16

Vendor information

Vendor: ThemeGrill
Product: Masteriyo - LMS

All ThemeGrill vulnerabilities

Score

6.5 Medium

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 3.7.

KEV

No

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Not classified

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
<= 2.1.8
Fixed
Not stated
Vulnerable
Not stated
Fixed
2.1.9

Scoring System

CVSS v4.0

Not available

CVSS v3.1

6.5 Medium

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality	Low
Integrity	Low
Availability	None

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).