CVE-2013-3536

WHMCS Group Pay < 1.5 - SQL Injection via Hash Parameter

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2013-3536. PoCs published by HJauditing Employee Tim.

AI-analyzed exploit summary This exploit demonstrates a SQL injection vulnerability in the WHMCS GroupPay plugin (version <= 1.5). The vulnerability occurs in the `gp_LoadUserFromHash` function due to improper sanitization of the `hash` parameter, allowing arbitrary SQL queries.

Description

SQL injection vulnerability in the gp_LoadUserFromHash function in functions_hash.php in the Group Pay module 1.5 and earlier for WHMCS allows remote attackers to execute arbitrary SQL commands via the hash parameter.

Exploits (1)

exploitdb WORKING POC
by HJauditing Employee Tim · textwebappsphp
https://www.exploit-db.com/exploits/24934

This exploit demonstrates a SQL injection vulnerability in the WHMCS GroupPay plugin (version <= 1.5). The vulnerability occurs in the `gp_LoadUserFromHash` function due to improper sanitization of the `hash` parameter, allowing arbitrary SQL queries.

Classification
Working Poc 90%
Attack Type
Sqli
Complexity
Trivial
Reliability
Reliable
Target: WHMCS GroupPay plugin <= 1.5
No auth needed
Prerequisites: Access to the vulnerable endpoint (`grouppay.php`)
mistral-large-3 · analyzed Feb 16, 2026 Full analysis →

References (4)

Core 4
Core References
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/52804
Exploit, Third Party Advisory exploit x_refsource_exploit-db
http://www.exploit-db.com/exploits/24934
Third Party Advisory, VDB Entry vdb-entry x_refsource_osvdb
http://www.osvdb.org/91980

Scores

EPSS 0.0224
EPSS Percentile 80.7%

Details

CWE
CWE-89
Status published
Products (1)
whmcs/group_pay < 1.5
Published May 13, 2013
Tracked Since Feb 18, 2026