CVE-2026-5060 Details
Description
The MasterStudy LMS WordPress Plugin – for Online Courses and Education plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 3.7.14. This is due to the `stm_lms_delete_cover()` function lacking ownership validation on the `file_id` parameter before passing it to `wp_delete_attachment()`. This makes it possible for authenticated attackers, with Instructor-level access and above, to delete arbitrary attachments belonging to any user by enumerating sequential attachment IDs.
A vulnerability exists in the MasterStudy LMS WordPress Plugin for Online Courses and Education, affecting all versions up to and including 3.7.14. The issue is an Insecure Direct Object Reference (IDOR) that allows authenticated users with Instructor-level access and above to delete arbitrary attachments from any user. This vulnerability arises because the 'stm_lms_delete_cover' function does not validate ownership of the 'file_id' parameter before it is sent to 'wp_delete_attachment'. Exploitation can be achieved by sequentially enumerating attachment IDs.
Users are advised to update the MasterStudy LMS WordPress Plugin to version 3.7.24 or later.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Jul 29, 2026CISA-ADP
Assessed Jul 29, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-639 | Authorization Bypass Through User-Controlled Key | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| MasterStudy LMS | <= 3.7.23 (semver) |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 29, 2026 | CVE Modified | CISA-ADP |
| Jul 29, 2026 | New CVE Received | [email protected] |
Volerion