CVE-2026-82845
Masteriyo LMS < 3.4.1 - Subscriber+ PHP Object Injection
- State
- Published
- Severity
- 9.9 Critical
- Published
- Sep 12, 2026
- Updated
- Sep 12, 2026
- Reserved
- Aug 31, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 9.9 Critical | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H | CISA-ADP |
Weaknesses
- CWE-502 Deserialization of Untrusted Data
Affected Products
| Product | Versions |
|---|---|
Masteriyo LMSUnknown |
|
References
- https://wpscan.com/vulnerability/5ced30ea-8b78-495f-b10c-42b3f10adcb3/exploitvdb-entrytechnical-description
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