NetSight
critical9.9

CVE-2026-82845

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, allowin…

Impact

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

ProductAffected versions
Masteriyo LMS WordPress Plugin
before 3.4.1
Library Bundled With The Masteriyo LMS WordPress Plugin
before 3.4.1

Versions were read from the advisory text. No structured product data has been published for this record yet.

Weakness classification

References