CVE-2026-11773 json
Masteriyo LMS <= 2.2.1 - Missing Authorization to Authenticated (Student+) Arbitrary Course Announcement Modification
published 2026-06-27 4 mo ago modified 2026-06-29 4 mo ago also EUVD-2026-39953
- cvss
- 4.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 16%
- public exploits
- 0
- none known
Summary
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.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 4 mo ago
Exploit prediction
0.25% chance of exploitation in the next 30 days, higher than 16% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
Affected products
- masteriyo Masteriyo LMS – LMS Course Builder, Quizzes & Certificates
Classification
- Weakness
-
- CWE-862 Missing Authorization
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/5780d762-2313-4c81-be02-99543359d824?source=cve
- plugins.trac.wordpress.org /browser/learning-management-system/tags/2.2.1/addons/course-announcement/Controllers/CourseAnnouncementContro
- plugins.trac.wordpress.org /browser/learning-management-system/tags/2.2.1/addons/course-announcement/Controllers/CourseAnnouncementContro
- plugins.trac.wordpress.org /browser/learning-management-system/tags/2.1.8/addons/course-announcement/Controllers/CourseAnnouncementContro
- plugins.trac.wordpress.org /browser/learning-management-system/tags/2.1.8/addons/course-announcement/Controllers/CourseAnnouncementContro
- plugins.trac.wordpress.org /changeset?sfp_email=&sfph_mail=&reponame=&old=3583519%40learning-management-system&new=3583519%40learning-man
Sources
- CVE List CVE-2026-11773
- NVD CVE-2026-11773
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.