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.
Metrics
CVSS 3.1 6.1/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Multiplayer Games | Multiplayer Games | >= 3.7, <= 3.7 |
References
- https://plugins.trac.wordpress.org/browser/multiplayer-plugin/trunk/multiplayergames.php#L662Exploit, Third Party Advisory
- https://www.wordfence.com/vulnerability-advisories/#CVE-2021-34644Third Party Advisory
- https://plugins.trac.wordpress.org/browser/multiplayer-plugin/trunk/multiplayergames.php#L662Exploit, Third Party Advisory
- https://www.wordfence.com/vulnerability-advisories/#CVE-2021-34644Third Party Advisory
Timeline
- Published
- Aug 16, 2021
- Last modified
- Jun 17, 2026
- NVD status
- Modified