CVE-2025-5844

MEDIUM

Radius Blocks WordPress Gutenberg Blocks <= 2.2.1 - Authenticated Stored XSS via subHeadingTagName

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2025-5844. PoCs published by KeyFrame-Bytes.

AI-analyzed exploit summary This repository provides a detailed technical writeup on exploiting CVE-2025-5844, a stack-based buffer overflow in FreeFloat FTP Server v1.0. It includes environment setup, static/dynamic analysis, and step-by-step exploitation guidance.

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.

Exploits (1)

nomisec WRITEUP
by KeyFrame-Bytes · poc
https://github.com/KeyFrame-Bytes/CVE-2025-5844

This repository provides a detailed technical writeup on exploiting CVE-2025-5844, a stack-based buffer overflow in FreeFloat FTP Server v1.0. It includes environment setup, static/dynamic analysis, and step-by-step exploitation guidance.

Classification
Writeup 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: FreeFloat FTP Server v1.0
No auth needed
Prerequisites: Windows 11 Pro 25H2 · Immunity Debugger · Mona.py · Python 2.7/3.x · Ghidra/IDA Free
devstral-2 · analyzed Mar 16, 2026 Full analysis →

References (3)

Core 3

Scores

CVSS v3 6.4
EPSS 0.0022
EPSS Percentile 12.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-79
Status published
Products (1)
techlabpro1/Radius Blocks – WordPress Gutenberg Blocks < 2.2.1
Published Aug 15, 2025
Tracked Since Feb 18, 2026