9.9
Critical
CVE-2026-82845 The Masteriyo LMS WordPress plugin before 3.4.1 does not prevent user-supplied values held as metadata from being…
Description
The Masteriyo LMS WordPress plugin before 3.4.1 does not prevent user-supplied values held as metadata from being deserialized when they are read back, allowing users with a minimal account to inject arbitrary PHP objects and, by way of a class shipped in a library bundled with the Masteriyo LMS WordPress plugin before 3.4.1, write and execute arbitrary code on the server. A weaker form of the same issue is reachable without an account and yields an arbitrary file write rather than code execution.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Masteriyo LMS 3.4 | earliest → < 3.4.1 | 3.4.1 |
Other CVEs of Masteriyo LMS
The 10 CVEs of Masteriyo LMS →
CVE-2026-82850
The Masteriyo LMS WordPress plugin before 3.4.2 does not restrict access to quiz answer keys, allowing any…
4.3
Medium
CVE-2026-82849
The Masteriyo LMS WordPress plugin before 3.4.2 does not verify that the user making the request owns the…
4.3
Medium
CVE-2026-82847
The Masteriyo LMS WordPress plugin before 3.4.1 does not sanitise and escape one of its course fields before outputting…
6.8
Medium
CVE-2026-82851
The Masteriyo LMS WordPress plugin before 3.4.1 does not verify ownership of, or restrict the type of, the records a…
2.7
Low