EIP-2026-113408

PRE-CVE

WHMCompleteSolution (WHMCS) 3.x < 4.0.x - 'cart.php' Local File Disclosure

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-113408. PoCs published by Lagripe-Dz & Mca-Crb.

AI-analyzed exploit summary The exploit demonstrates a local file disclosure vulnerability in WHMCS (WHMCompleteSolution) versions 3.x.x and 4.0.x. By manipulating the 'templatefile' parameter in cart.php, an attacker can read arbitrary files on the server due to insufficient input validation.

Description

WHMCompleteSolution (WHMCS) 3.x < 4.0.x - 'cart.php' Local File Disclosure

Exploits (1)

exploitdb WORKING POC
by Lagripe-Dz & Mca-Crb · textwebappsphp
https://www.exploit-db.com/exploits/17999

The exploit demonstrates a local file disclosure vulnerability in WHMCS (WHMCompleteSolution) versions 3.x.x and 4.0.x. By manipulating the 'templatefile' parameter in cart.php, an attacker can read arbitrary files on the server due to insufficient input validation.

Classification
Working Poc 90%
Attack Type
Info Leak
Complexity
Trivial
Reliability
Reliable
Target: WHMCS (WHMCompleteSolution) 3.x.x, 4.0.x
No auth needed
Prerequisites: Access to the cart.php endpoint
devstral-2 · analyzed Feb 18, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026