PT-2025-25389 · WordPress · Game Review Block

Peter Thaleikis · Published 2025-06-13 · Updated 2025-06-13 · CVE-2025-5923

Positive Technologies (AI Summary)

CVSS v3.1

6.4

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions The Game Review Block plugin for WordPress versions up to, and including, 4.8.1

Description The issue is related to Stored Cross-Site Scripting via the className parameter due to insufficient input sanitization and output escaping. This allows 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.

Recommendations For versions up to, and including, 4.8.1, update to a version that addresses the insufficient input sanitization and output escaping issue to prevent Stored Cross-Site Scripting attacks. As a temporary workaround, consider restricting access to the className parameter to minimize the risk of exploitation.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2025-5923

Affected Products

Game Review Block

References · 9

• https://osv.dev/vulnerability/CVE-2025-5923 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-5923 · Security Note
• https://github.com/mtoensing/game-review-block/commit/135aa118b75db5242df7fd1ef13cc09ec3410f3a · Note
• https://wordpress.org/plugins/game-review-block/#developers · Note
• https://wordfence.com/threat-intel/vulnerabilities/id/88520d8e-8e13-4b58-9df3-3b99afd39144?source=cve · Note
• https://t.me/cvetracker/26170 · Telegram Post
• https://plugins.trac.wordpress.org/browser/game-review-block/tags/4.7.0/src/game-table/callback.php#L38 · Note
• https://twitter.com/CVEnew/status/1933417151655800957 · Twitter Post
• https://twitter.com/VulmonFeeds/status/1933424353254748200 · Twitter Post