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CVE-2026-67398

WHMCS · Vulnerability

CVSS 4.0 8.2 HIGHCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-67398

Published

Missing authorization vulnerability has been discovered in 2Checkout payment gateway of WHMCS from 8.13.0 before 8.13.7, 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 endpoint under specific conditions.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-67398

Published

WHMCS

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "defaultStatus": "unaffected",
                    "vendor": "WebPros",
                    "product": "WHMCS",
                    "versions": [
                        {
                            "version": "4.5.0",
                            "status": "affected",
                            "lessThan": "8.12.2",
                            "versionType": "semver"
                        },
                        {
                            "version": "8.13.0",
                            "status": "affected",
                            "lessThan": "8.13.7",
                            "versionType": "semver"
                        },
                        {
                            "version": "9.0.0",
                            "status": "affected",
                            "lessThan": "9.0.8",
                            "versionType": "semver"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON