EIP-2026-107125

PRE-CVE

FlatCore CMS 2.1.1 - Stored Cross-Site Scripting (XSS)

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-107125. PoCs published by Sinem Şahin.

AI-analyzed exploit summary This exploit demonstrates a stored XSS vulnerability in FlatCore CMS 2.1.1 by injecting a malicious script into the username field during user account creation. The payload executes when the username is rendered in the application.

Description

FlatCore CMS 2.1.1 - Stored Cross-Site Scripting (XSS)

Exploits (1)

exploitdb WORKING POC
by Sinem Şahin · textwebappsphp
https://www.exploit-db.com/exploits/51068

This exploit demonstrates a stored XSS vulnerability in FlatCore CMS 2.1.1 by injecting a malicious script into the username field during user account creation. The payload executes when the username is rendered in the application.

Classification
Working Poc 90%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: FlatCore CMS 2.1.1
No auth needed
Prerequisites: Access to the installation page (http://(HOST)/install/index.php) · Ability to create a user account
devstral-2 · analyzed Feb 18, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026