EIP-2026-107523

PRE-CVE

Guestex Guestbook 1.00 - 'email' Remote Code Execution

Title source: legacy

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-107523. PoCs published by K-sPecial.

AI-analyzed exploit summary This exploit targets a command injection vulnerability in GUESTEX guestbook software via the 'email' parameter, which is passed unsanitized to a sendmail pipe. It allows remote code execution by injecting commands into the HTTP POST request.

Description

Guestex Guestbook 1.00 - 'email' Remote Code Execution

Exploits (1)

exploitdb WORKING POC VERIFIED

by K-sPecial · perlwebappsphp

https://www.exploit-db.com/exploits/1892

View Code ZIP pw:eip

This exploit targets a command injection vulnerability in GUESTEX guestbook software via the 'email' parameter, which is passed unsanitized to a sendmail pipe. It allows remote code execution by injecting commands into the HTTP POST request.

Classification

Working Poc 95%

Attack Type

Rce

Complexity

Trivial

Reliability

Reliable

Target: GUESTEX guestbook (version unspecified)

No auth needed

Prerequisites: Network access to the target · GUESTEX guestbook with vulnerable 'email' parameter handling

MITRE ATT&CK

T1190 - Exploit Public-Facing Application T1059 - Command and Scripting Interpreter

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

Details

Status pre_cve

Tracked Since Feb 18, 2026