Medium severity6.4NVD Advisory· Published Aug 15, 2025· Updated Apr 15, 2026

CVE-2025-5844

Description

The Radius Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘subHeadingTagName’ parameter in all versions up to, and including, 2.2.1 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.

Affected products

WordPress/Radius Blocksreferences
Package: https://wordpress.org/plugins/radius-blocks

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

plugins.trac.wordpress.org/browser/radius-blocks/tags/2.2.1/templates/blocks/advanced-heading/layout.phpnvd
wordpress.org/plugins/radius-blocks/nvd
www.wordfence.com/threat-intel/vulnerabilities/id/ff41796a-0ba8-468f-8b79-274064da154envd

News mentions

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cvss	0.416
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000