CVE-2025-5940 Information

Jun 28, 2025 cve

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.

CVSS Vector

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

Reference

https://plugins.trac.wordpress.org/browser/osomblocks/trunk/blocks/cpt-list/index.php#L171 https://wordpress.org/plugins/osomblocks/#developers https://www.wordfence.com/threat-intel/vulnerabilities/id/54e022df-0dc7-4f60-811d-48a92b723d55?source=cve

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

CHANGED

Integrity Impact

LOW

Availability Impact

LOW

Base Score