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CVE-2026-86407

User Registration & Membership < 5.2.8 - Unauthenticated User Data Disclosure via Membership Thank You Page

cve-program · severity unknownCVSS unknownCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-86407

Published

The User Registration & Membership WordPress plugin before 5.2.8 does not verify that the visitor requesting its membership confirmation page owns the account named in the request, nor that any registration or purchase has taken place, allowing unauthenticated users to retrieve another user's email address, profile fields, role and membership order details. Exploitation requires the site owner to have added a user smart tag to that page's configurable message, which the shipped default does not contain.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-86407

Published

User Registration & Membership

Vendor product

Publisher's version information

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

{
                    "vendor": "Unknown",
                    "product": "User Registration & Membership",
                    "versions": [
                        {
                            "status": "affected",
                            "versionType": "semver",
                            "version": "5.0",
                            "lessThan": "5.2.8"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }

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