CVE-2021-34644 MEDIUM

CVE-2021-34644: Multiplayer Games <= 3.7 Reflected Cross-Site Scripting

Vendor Multiplayer Games
Product Multiplayer Games
Weakness CWE-79 · XSS
Published August 16, 2021
Last update May 5, 2025

CVSS base score

6.1/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

August 16, 2021 CVE published
May 5, 2025 Record updated