Path Traversal in Masterstudy Lms WordPress Plugin
CVE-2026-88843
The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50 does not validate one of its display-style settings before using it to build a template path, allowing users with the Contributor role and above to include and execute arbitrary local PHP files on the server. An equivalent path was corrected in an earlier release and this one was not, so the issue persists in versions the earlier advisory reports as fixed.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.002 (4.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 4.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
The 30-day trend appears once there are two daily scores.
Affected products
- Masterstudy Lms WordPress Plugin
Weakness classification (CWE)
References
- wpscan.com/vulnerability/fffc0d8c-256e-417d-b76c-251948b9f1ed/ (technical-description, exploit, vdb-entry)
Frequently asked questions
- What is CVE-2026-88843?
- CVE-2026-88843 is a high-severity vulnerability in Masterstudy Lms WordPress Plugin, classified under Path Traversal. CVSS score: 7.2/10. Published 2026-09-24.
- How severe is CVE-2026-88843?
- High severity. CVSS v3 base score is 7.2 out of 10.