Vulnerability · Published Aug 15, 2025 · Assigned by Wordfence
CVE-2025-5844Radius Blocks <= 2.2.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via subHeadingTagName Parameter
Medium 6.4
In plain English
A medium-severity cross-site scripting in Radius Blocks – WordPress Gutenberg Blocks from techlabpro1. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 19% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.
Official 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 (as reported)
| Vendor | Product | Versions |
|---|---|---|
| techlabpro1 | Radius Blocks – WordPress Gutenberg Blocks | 0 – through 2.2.1 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N