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CVE-2021-34644: 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 arbitr

medium Affects multiplayer-plugin (WordPress plugin). Feed 2026.10.29.3, updated 2026-10-29; published ; advisory modified .

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 arbitr

Package
multiplayer-plugin (WordPress plugin) WordPress
Affected versions
<=3.7
Fixed in
no fix recorded
Severity
medium  CVSS 6.1
Exploitation
not on CISA KEV · EPSS 1% (60.8th percentile)
Published
2021-08-16
Source
nvd

References

CWE-79
NVD recordmultiplayer-plugin (WordPress plugin) advisories

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