Path Traversal in Stylemix Masterstudy Lms

CVE-2026-78284

Unauthenticated Arbitrary File Deletion in MasterStudy LMS <= 3.7.42 versions.

Vulnerability class: Path Traversal (Directory Traversal)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.005 (43.2th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 43.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-78284: held from 0.003 to 0.005.

EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.002

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-78284?
CVE-2026-78284 is a high-severity vulnerability in Stylemix Masterstudy Lms, classified under Path Traversal. CVSS score: 8.6/10. Published 2026-08-24.
How severe is CVE-2026-78284?
High severity. CVSS v3 base score is 8.6 out of 10.