CVE-2026-8279 json
Masteriyo LMS <= 2.2.0 - Missing Authorization to Unauthenticated Arbitrary Course Progress Deletion
published 2026-09-07 2 mo ago modified 2026-09-08 2 mo ago also EUVD-2026-72368
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 34%
- public exploits
- 0
- none known
Summary
The Masteriyo LMS plugin for WordPress is vulnerable to unauthorized data deletion due to a missing capability check on the 'delete_item_permissions_check' function in the CourseProgressItemsController in all versions up to, and including, 2.2.0. This makes it possible for unauthenticated attackers to delete arbitrary course progress records belonging to any student.
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 2 mo ago
Exploit prediction
0.40% chance of exploitation in the next 30 days, higher than 34% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/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/d317d40b-2b99-408b-b445-1a789df3c958?source=cve
- plugins.trac.wordpress.org /browser/learning-management-system/tags/2.1.9/includes/RestApi/Controllers/Version1/CourseProgressItemsContro
- plugins.trac.wordpress.org /browser/learning-management-system/tags/2.1.9/includes/RestApi/Controllers/Version1/CourseProgressItemsContro
- plugins.trac.wordpress.org /browser/learning-management-system/tags/2.1.9/includes/Repository/CourseProgressItemRepository.php#L269
Sources
- CVE List CVE-2026-8279
- NVD CVE-2026-8279
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.