CVE-2025-5844

Radius Blocks <= 2.2.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via subHeadingTagName Parameter

6.4 MediumPublic exploit

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: Low
Integrity: Low
Availability: None

Exploit likelihood

0.25%Up 0.2 points since Aug 15, 2025

What each source reports

CVE List Score used 6.4

Radius Blocks <= 2.2.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via subHeadingTagName Parameter

Record: CVE-2025-5844
CVSS 3.1: 6.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

EUVDEUVD-2025-24995 6.4

Record: EUVD-2025-24995
CVSS 3.1: 6.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-2fjx-93rg-p8fv 6.4

The Radius Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ...

Record: GHSA-2fjx-93rg-p8fv
CVSS 3.1: 6.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

NVD 6.4

Record: CVE-2025-5844
CVSS 3.1: 6.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

Affected products

techlabpro1 radius blocks – wordpress gutenberg blocks

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
PoC in GitHub	KeyFrame-Bytes/CVE-2025-5844	2026-03-15

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, PoC in GitHub

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-5844 is a medium vulnerability (CVSS 6.4) in Techlabpro1 Radius Blocks – Wordpress Gutenberg Blocks, published August 15, 2025. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 0.25%, the 16th percentile. No source names a fixed version.