EIP-2026-106121

PRE-CVE

Concrete CMS 5.4.1.1 - Cross-Site Scripting / Remote Code Execution

Title source: legacy

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-106121. PoCs published by mr_me.

AI-analyzed exploit summary This exploit targets Concrete CMS v5.4.1.1, leveraging XSS to steal admin cookies and achieve remote code execution via file upload. It includes a reverse shell payload and interactive command execution.

Description

Concrete CMS 5.4.1.1 - Cross-Site Scripting / Remote Code Execution

Exploits (1)

exploitdb WORKING POC VERIFIED

by mr_me · pythonwebappsphp

https://www.exploit-db.com/exploits/15915

View Code ZIP pw:eip

This exploit targets Concrete CMS v5.4.1.1, leveraging XSS to steal admin cookies and achieve remote code execution via file upload. It includes a reverse shell payload and interactive command execution.

Classification

Working Poc 95%

Attack Type

Rce

Complexity

Moderate

Reliability

Reliable

Target: Concrete CMS v5.4.1.1

No auth needed

Prerequisites: Target must be running Concrete CMS v5.4.1.1 · Admin must visit a crafted XSS page

MITRE ATT&CK

T1189 - Drive-by Compromise T1059 - Command and Scripting Interpreter T1190 - Exploit Public-Facing Application

devstral-2 · analyzed Feb 16, 2026 Full analysis →

Details

Status pre_cve

Tracked Since Feb 18, 2026