EIP-2026-118347

PRE-CVE

Centrinity FirstClass HTTP Server 5/7 - 'TargetName' Cross-Site Scripting

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-118347. PoCs published by Richard Maudsley.

AI-analyzed exploit summary This is a writeup describing a cross-site scripting (XSS) vulnerability in Centrinity FirstClass HTTP Server. The vulnerability is due to insufficient sanitization of the 'TargetName' parameter in the 'Upload.shtml' script, allowing arbitrary HTML or script code execution in a user's browser.

Description

Centrinity FirstClass HTTP Server 5/7 - 'TargetName' Cross-Site Scripting

Exploits (1)

exploitdb WRITEUP VERIFIED
by Richard Maudsley · textremotewindows
https://www.exploit-db.com/exploits/23871

This is a writeup describing a cross-site scripting (XSS) vulnerability in Centrinity FirstClass HTTP Server. The vulnerability is due to insufficient sanitization of the 'TargetName' parameter in the 'Upload.shtml' script, allowing arbitrary HTML or script code execution in a user's browser.

Classification
Writeup 90%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: Centrinity FirstClass versions 7.1 and prior
No auth needed
Prerequisites: Access to the vulnerable 'Upload.shtml' script on the target server
MITRE ATT&CK
devstral-2 · analyzed Feb 16, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026