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CVE-2026-11773— Masteriyo LMS <= 2.2.1 - Missing Authorization to Authenticated (Student+) Arbitrary Course Announcement Modification

Quick assessment

Affected
masteriyo Masteriyo LMS – LMS Course Builder, Quizzes & Certificates
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是一款学习管理系统。 Masteriyo LMS 2.2.1及之前版本存在授权问题漏洞，该漏洞源于未正确验证用户是否授权执行操作，可能导致经过身份验证的攻击者（具有学生级别及以上权限）修改任意课程公告的描述。

CVSS 4.3 · Medium EPSS 0.25% · P15

Possible ATT&CK Techniques 1 AI

T1078.002 · Domain Accounts

Affected Version Matrix 1

VendorProduct Version RangeStatus
masteriyo Masteriyo LMS – LMS Course Builder, Quizzes & Certificates ≤ 2.2.1 affected
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I. Basic Information for CVE-2026-11773

Vulnerability Information
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Vulnerability Title
Masteriyo LMS <= 2.2.1 - Missing Authorization to Authenticated (Student+) Arbitrary Course Announcement Modification
Source: CVE Program / CVE List V5
Vulnerability Description
The Masteriyo LMS – LMS Course Builder, Quizzes & Certificates plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 2.2.1. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with student-level access and above, to modify the description (post content) of arbitrary course announcements authored by instructors or administrators.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Masteriyo LMS 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Masteriyo LMS是一款学习管理系统。 Masteriyo LMS 2.2.1及之前版本存在授权问题漏洞，该漏洞源于未正确验证用户是否授权执行操作，可能导致经过身份验证的攻击者（具有学生级别及以上权限）修改任意课程公告的描述。
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
masteriyo Masteriyo LMS – LMS Course Builder, Quizzes & Certificates 0 ~ 2.2.1 -

II. Public POCs for CVE-2026-11773

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III. Intelligence Information for CVE-2026-11773

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Patches & Fixes for CVE-2026-11773 (3)

Other References for CVE-2026-11773 (1)

IV. Related Vulnerabilities

Same product: Masteriyo LMS – LMS Course Builder, Quizzes & Certificates
Same vendor: masteriyo
Same weakness: CWE-862

V. Comments for CVE-2026-11773

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