WordPress WHMCS Bridge <6.4b - Cross-Site Scripting

WordPress WHMCS Bridge plugin before 6.4b contains a reflected cross-site scripting vulnerability. It does not sanitize and escape the error parameter before outputting it back in the admin dashboard. id: CVE-2021-25112 info: name: WordPress WHMCS Bridge 6.4b - Cross-Site Scripting author:...

cve-2026-29204-whmcs-clientarea-addonid

CVE-2026-29204 — Guardia de complemento del área de cliente de WHMCS Notas no oficiales de la comunidad para CVE-2026-29204: en clientarea.php?action=productdetails, un cliente autenticado puede proporcionar un addonId externo con modop=custom y acceder al contexto del módulo que no pertenece a l...

CVE-2026-16272

Use of less trusted source vulnerability in PayTR Payment and Electronic Money Institution Inc. PayTR Virtual Pos iFrame API v9x WHMCS Module allows Exploitation of Trusted Identifiers. This issue affects PayTR Virtual Pos iFrame API v9x WHMCS Module: from v9.0.0 before v9.0.3...

CVE-2026-16272 Client IP Spoofing via Untrusted HTTP Headers in PayTR's PayTR Virtual Pos iFrame API (v9x) WHMCS Module

Use of less trusted source vulnerability in PayTR Payment and Electronic Money Institution Inc. PayTR Virtual Pos iFrame API v9x WHMCS Module allows Exploitation of Trusted Identifiers. This issue affects PayTR Virtual Pos iFrame API v9x WHMCS Module: from v9.0.0 before v9.0.3...

EUVD-2026-74769

Use of less trusted source vulnerability in PayTR Payment and Electronic Money Institution Inc. PayTR Virtual Pos iFrame API v9x WHMCS Module allows Exploitation of Trusted Identifiers. This issue affects PayTR Virtual Pos iFrame API v9x WHMCS Module: from v9.0.0 before v9.0.3...

CVE-2026-16272

PayTR Virtual Pos iFrame API (v9x) WHMCS Module (versions v9.0.0 through before v9.0.3) is affected by a client IP spoofing vulnerability caused by use of less trusted source —specifically, untrusted HTTP headers are relied upon for identifying the client IP, allowing exploitation of trusted iden...

CVE-2026-16025

Improper validation of specified quantity in input vulnerability in PayTR Payment and Electronic Money Institution Inc. PayTR Virtual Pos iFrame API v9x WHMCS Module allows Input Data Manipulation. This issue affects PayTR Virtual Pos iFrame API v9x WHMCS Module: from v9.0.0 before v9.0.3...

CVE-2026-16037

Observable timing discrepancy vulnerability in PayTR Payment and Electronic Money Institution Inc. PayTR Virtual Pos iFrame API v9x WHMCS Module allows Black Box Reverse Engineering. This issue affects PayTR Virtual Pos iFrame API v9x WHMCS Module: from v9.0.0 before v9.0.3...

CVE-2026-16037 Callback Authentication Bypass via Timing Attack in PayTR's PayTR Virtual Pos iFrame API (v9x) WHMCS Module

Observable timing discrepancy vulnerability in PayTR Payment and Electronic Money Institution Inc. PayTR Virtual Pos iFrame API v9x WHMCS Module allows Black Box Reverse Engineering. This issue affects PayTR Virtual Pos iFrame API v9x WHMCS Module: from v9.0.0 before v9.0.3...

EUVD-2026-72853

Observable timing discrepancy vulnerability in PayTR Payment and Electronic Money Institution Inc. PayTR Virtual Pos iFrame API v9x WHMCS Module allows Black Box Reverse Engineering. This issue affects PayTR Virtual Pos iFrame API v9x WHMCS Module: from v9.0.0 before v9.0.3...

CVE-2026-16037

CVE-2026-16037 is an observable timing discrepancy in the PayTR Virtual Pos iFrame API (v9x) WHMCS Module (versions v9.0.0 through before v9.0.3) that allows a callback authentication bypass via timing attack , enabling black box reverse engineering . The CNA-assigned CVSS 3.1 score is 7.5 (HIGH)...

CVE-2026-16025 Improper Payment Validation in PayTR's PayTR Virtual Pos iFrame API (v9x) WHMCS Module

Improper validation of specified quantity in input vulnerability in PayTR Payment and Electronic Money Institution Inc. PayTR Virtual Pos iFrame API v9x WHMCS Module allows Input Data Manipulation. This issue affects PayTR Virtual Pos iFrame API v9x WHMCS Module: from v9.0.0 before v9.0.3...

EUVD-2026-72852

Improper validation of specified quantity in input vulnerability in PayTR Payment and Electronic Money Institution Inc. PayTR Virtual Pos iFrame API v9x WHMCS Module allows Input Data Manipulation. This issue affects PayTR Virtual Pos iFrame API v9x WHMCS Module: from v9.0.0 before v9.0.3...

CVE-2026-16025

CVE-2026-16025 affects PayTR Virtual Pos iFrame API (v9x) WHMCS Module from PayTR Payment and Electronic Money Institution Inc. The vulnerability stems from improper validation of the specified quantity in the input, allowing Input Data Manipulation . Affected versions are from v9.0.0 before v9.0...

EUVD-2026-70849

Missing authorization vulnerability has been discovered in 2Checkout payment gateway of WHMCS from 8.13.0 before 8.13.8, from 9.0.0 before 9.0.8, all other EOL versions from 4.5.0. The vulnerability allows an unauthenticated user to get WHMCS customer's data via 2Checkout payment gateway's endpoi...

CVE-2026-67398

Missing authorization vulnerability has been discovered in 2Checkout payment gateway of WHMCS from 8.13.0 before 8.13.8, from 9.0.0 before 9.0.8, all other EOL versions from 4.5.0. The vulnerability allows an unauthenticated user to get WHMCS customer's data via 2Checkout payment gateway's endpoi...

CVE-2026-67398

CVE-2026-67398 is a missing authorization flaw in the 2Checkout payment gateway integration of WHMCS . An unauthenticated attacker can enumerate invoice IDs and retrieve customer personal data through the 2Checkout endpoint under specific conditions. Affected versions include all WHMCS 4.5.0+ (EO...

CVE-2026-67398

Missing authorization vulnerability has been discovered in 2Checkout payment gateway of WHMCS from 8.13.0 before 8.13.8, from 9.0.0 before 9.0.8, all other EOL versions from 4.5.0. The vulnerability allows an unauthenticated user to get WHMCS customer's data via 2Checkout payment gateway's endpoi...

PT-2026-85205

Missing authorization vulnerability has been discovered in 2Checkout payment gateway of WHMCS from 8.13.0 before 8.13.8, from 9.0.0 before 9.0.8, all other EOL versions from 4.5.0. The vulnerability allows an unauthenticated user to get WHMCS customer's data via 2Checkout payment gateway's endpoi...

PT-2026-85206

A critical WHMCS security update fixes CVE-2026-67399 and CVE-2026-67398. Apply the patch now to prevent remote code execution and data leaks. WHMCS CyberSecurity CVE202667399 CVE202667398 InfoSec https://t.co/LuCYwv3icN https://t.co/BNvTvGIUBc...