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OpenAdvisories
Medium · 6.4 CVE-2025-5923 EUVD-2025-18255GHSA-565j-r5pv-8mmf

Game Review Block <= 4.8.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via className Parameter

Published Jun 13, 2025 · Updated Apr 8, 2026 · Assigned by Wordfence

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.

Affected products

VendorProductAffectedFixed
marcdk Game Review Block ≤ 4.8.1 —

References