CVE-2025-5940 – Osom Blocks – WordPress Stored Cross-Site Scripting

CVE ID : CVE-2025-5940

Published : June 27, 2025, 8:15 a.m. | 1 hour, 14 minutes ago

Description : The Osom Blocks – Custom Post Type listing block plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘class_name’ parameter in all versions up to, and including, 1.2.1 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.

Severity: 6.4 | MEDIUM

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