PT-2021-20612 · WordPress · Multiplayer Games

P7E4 · Published 2021-08-16 · Updated 2021-08-23 · CVE-2021-34644

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: Multiplayer Games WordPress plugin versions up to and including 3.7

Description: The issue is related to Reflected Cross-Site Scripting, which occurs due to the use of $ SERVER['PHP SELF'] in the ~/multiplayergames.php file. This allows attackers to inject arbitrary web scripts.

Recommendations: For versions up to and including 3.7, update to a version higher than 3.7 to resolve the issue. As a temporary workaround, consider restricting access to the ~/multiplayergames.php file until a patch is available.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-34644

Affected Products

Multiplayer Games

References · 6

• 🔥 https://plugins.trac.wordpress.org/browser/multiplayer-plugin/trunk/multiplayergames.php#L662 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-34644 · Security Note
• https://osv.dev/vulnerability/CVE-2021-34644 · Vendor Advisory
• https://t.me/cibsecurity/27393 · Telegram Post
• https://wordfence.com/vulnerability-advisories/#CVE-2021-34644 · Note
• https://t.me/cvenotify/19462 · Telegram Post