CVE-2026-42743— WordPress Masteriyo - LMS plugin <= 2.1.8 - Broken Authentication vulnerability
Quick assessment
Affected
ThemeGrill Masteriyo - LMS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Masteriyo LMS是masteriyo团队的一款基于CMS的在线学习管理插件。 Masteriyo LMS 2.1.8及之前版本存在加密问题漏洞，该漏洞源于认证机制缺陷，可能导致未经身份验证的攻击者利用网络访问进行身份验证绕过，从而访问或修改部分数据。
Affected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| ThemeGrill | Masteriyo - LMS | n/a≤ 2.1.8 |
affected |
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I. Basic Information for CVE-2026-42743
Vulnerability Information
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Vulnerability Title
WordPress Masteriyo - LMS plugin <= 2.1.8 - Broken Authentication vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Unauthenticated Broken Authentication in Masteriyo - LMS <= 2.1.8 versions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
密码学签名的验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Masteriyo LMS 加密问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Masteriyo LMS是masteriyo团队的一款基于CMS的在线学习管理插件。 Masteriyo LMS 2.1.8及之前版本存在加密问题漏洞，该漏洞源于认证机制缺陷，可能导致未经身份验证的攻击者利用网络访问进行身份验证绕过，从而访问或修改部分数据。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| ThemeGrill | Masteriyo - LMS | n/a ~ 2.1.8 | - |
|
II. Public POCs for CVE-2026-42743
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2026-42743 (1)
Same Patch Batch · ThemeGrill · 2026-06-15 · 4 CVEs total
| CVE-2026-49111 | 8.8 HIGH | WordPress Masteriyo - LMS plugin <= 2.2.0 - Privilege Escalation vulnerability |
| CVE-2026-25425 | 7.5 HIGH | WordPress User Registration plugin <= 5.1.2 - Broken Access Control vulnerability |
| CVE-2026-39524 | 7.5 HIGH | WordPress Masteriyo - LMS plugin <= 2.1.5 - Payment Bypass vulnerability |
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