EIP-2026-111833

PRE-CVE

RunCMS 2.1 - 'check.php' Cross-Site Scripting

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-111833. PoCs published by Andrei Rimsa Alvares.

AI-analyzed exploit summary The provided text describes a cross-site scripting (XSS) vulnerability in RunCms 2.1, where user-supplied input is not properly sanitized. It includes an example request using wget with a malformed user-agent to demonstrate the issue.

Description

RunCMS 2.1 - 'check.php' Cross-Site Scripting

Exploits (1)

exploitdb WRITEUP VERIFIED
by Andrei Rimsa Alvares · textwebappsphp
https://www.exploit-db.com/exploits/34266

The provided text describes a cross-site scripting (XSS) vulnerability in RunCms 2.1, where user-supplied input is not properly sanitized. It includes an example request using wget with a malformed user-agent to demonstrate the issue.

Classification
Writeup 90%
Attack Type
Xss
Complexity
Trivial
Reliability
Theoretical
Target: RunCms 2.1
No auth needed
Prerequisites: Access to a vulnerable RunCms instance
MITRE ATT&CK
devstral-2 · analyzed Feb 18, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026