MasterStudy LMS permits unauthenticated arbitrary file deletion
MasterStudy LMS through 3.7.42 permits an unauthenticated attacker to influence a file-deletion operation. The CNA rates the resulting availability impact as high and scope as changed.
- Component
- MasterStudy LMS
- Plugin slug
masterstudy-lms-learning-management-system- Affected
- n/a through 3.7.42
- Safe version
3.7.43- Published
- Aug 24, 2026
This CVE was published Aug 24, 2026 and is one of 31 known issues for this plugin.
Update, patch or deactivate.
Update to 3.7.43 or later, maintain current backups, and inspect the WordPress filesystem and access logs for unexpected deletions.
A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
Unauthenticated Arbitrary File Deletion in MasterStudy LMS <= 3.7.42 versions.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H