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 — WHMCS client area addon guard Unofficial community notes for CVE-2026-29204: on clientarea.php?action=productdetails, a logged-in client can supply a foreign addonId with modop=custom and reach module context that does not belong to the session. Upgrade first. Apply a...

CVE-2026-67399

Deserialization of untrusted data in WHMCS 9.0.0 before 9.0.8 and 8.0.0 before 8.13.7 allows remote attackers to execute arbitrary code...

CVE-2026-67399

WHMCS is a web-based business management platform for hosting providers. A deserialization of untrusted data vulnerability in WHMCS versions 9.0.0 before 9.0.8 and 8.0.0 before 8.13.7 allows remote attackers to execute arbitrary code without authentication or user interaction. The CVSS 4.0 score ...

CVE-2026-67399

Deserialization of untrusted data in WHMCS 9.0.0 before 9.0.8 and 8.0.0 before 8.13.7 allows remote attackers to execute arbitrary code...

CVE-2026-67399

Deserialization of untrusted data in WHMCS 9.0.0 before 9.0.8 and 8.0.0 before 8.13.7 allows remote attackers to execute arbitrary code...

EUVD-2026-78136

Deserialization of untrusted data in WHMCS 9.0.0 before 9.0.8 and 8.0.0 before 8.13.7 allows remote attackers to execute arbitrary code...

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-2026-16272 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...

PT-2026-88898

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-2026-16025

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-2026-16037 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...

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...