CVE-2025-5923
Game Review Block <= 4.8.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via className Parameter
CVSS Score
6.4
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-79 |
| Vendor | marcdk |
| Product | game review block |
| Published | Jun 13, 2025 |
| Last Updated | Apr 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
marcdk / Game Review Block
0 ≤ 4.8.1
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/88520d8e-8e13-4b58-9df3-3b99afd39144?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/game-review-block/tags/4.7.0/src/game-table/callback.php#L38 wordpress.org: https://wordpress.org/plugins/game-review-block/#developers github.com: https://github.com/mtoensing/game-review-block/commit/135aa118b75db5242df7fd1ef13cc09ec3410f3a
Credits
Peter Thaleikis