CVE-2025-5923

MEDIUM

Game Review Block <= 4.8.1 - Authenticated Stored Cross-Site Scripting via className Parameter

Title source: llm

Description

The Game Review Block plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘className’ parameter in all versions up to, and including, 4.8.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

References (4)

Core 4

Core References

Product

https://plugins.trac.wordpress.org/browser/game-review-block/tags/4.7.0/src/game-table/callback.php#L38

Product

https://wordpress.org/plugins/game-review-block/#developers

Patch

https://github.com/mtoensing/game-review-block/commit/135aa118b75db5242df7fd1ef13cc09ec3410f3a

View Patch ZIP pw:eip

Third Party Advisory

https://www.wordfence.com/threat-intel/vulnerabilities/id/88520d8e-8e13-4b58-9df3-3b99afd39144?source=cve

Scores

CVSS v3 6.4

EPSS 0.0023

EPSS Percentile 13.8%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-79

Status published

Products (1)

marcdk/Game Review Block < 4.8.1

Published Jun 13, 2025

Tracked Since Feb 18, 2026