CVE-2026-11773
Masteriyo LMS <= 2.2.1 - Missing Authorization to Authenticated (Student+) Arbitrary Course Announcement Modification
CVSS Score
4.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-862 |
| Vendor | masteriyo |
| Product | masteriyo lms – lms course builder, quizzes & certificates |
| Published | Jun 27, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
masteriyo / Masteriyo LMS – LMS Course Builder, Quizzes & Certificates
0 ≤ 2.2.1
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/5780d762-2313-4c81-be02-99543359d824?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/learning-management-system/tags/2.2.1/addons/course-announcement/Controllers/CourseAnnouncementController.php#L782 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/learning-management-system/tags/2.2.1/addons/course-announcement/Controllers/CourseAnnouncementController.php#L619 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/learning-management-system/tags/2.1.8/addons/course-announcement/Controllers/CourseAnnouncementController.php#L782 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/learning-management-system/tags/2.1.8/addons/course-announcement/Controllers/CourseAnnouncementController.php#L619 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3583519%40learning-management-system&new=3583519%40learning-management-system&sfp_email=&sfph_mail=
Credits
ilinor