EIP-2026-104684

PRE-CVE

WHMCompleteSolution (WHMCS) 5.12 - 'cart.php' Denial of Service

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-104684. PoCs published by Amir.

AI-analyzed exploit summary This Perl script exploits a denial-of-service vulnerability in WHMCS 5.12 by sending multiple crafted HTTP POST requests to the cart.php endpoint. The exploit targets the domain options functionality, causing a DoS condition.

Description

WHMCompleteSolution (WHMCS) 5.12 - 'cart.php' Denial of Service

Exploits (1)

exploitdb WORKING POC VERIFIED
by Amir · perldosphp
https://www.exploit-db.com/exploits/39091

This Perl script exploits a denial-of-service vulnerability in WHMCS 5.12 by sending multiple crafted HTTP POST requests to the cart.php endpoint. The exploit targets the domain options functionality, causing a DoS condition.

Classification
Working Poc 95%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: WHMCS 5.12
No auth needed
Prerequisites: Network access to the target WHMCS instance
devstral-2 · analyzed Feb 18, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026