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OpenAdvisories
Medium · 6.1 CVE-2021-34644 EUVD-2021-21294GHSA-8vg8-h2xx-w3r2

Multiplayer Games <= 3.7 Reflected Cross-Site Scripting

Published Aug 16, 2021 · Updated May 5, 2025 · Assigned by Wordfence

Description

The Multiplayer Games WordPress plugin is vulnerable to Reflected Cross-Site Scripting due to the use of $_SERVER['PHP_SELF'] in the ~/multiplayergames.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 3.7.

Affected products

VendorProductAffectedFixed
Multiplayer Games Multiplayer Games 3.7 – ≤ 3.7 —

References