The User Registration & Membership WordPress plugin before 5.2.8 does not verify that the visitor requesting its membership confirmation page owns… (CVE-2026-86407)
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.
AI Analysis
Technical Summary
CVE-2026-86407 affects the User Registration & Membership WordPress plugin prior to version 5.2.8. The vulnerability arises because the membership confirmation page fails to verify ownership of the account named in the request, nor confirms that any registration or purchase has occurred. This allows unauthenticated attackers to retrieve sensitive user information such as email addresses, profile fields, roles, and membership order details. Exploitation depends on the presence of a user smart tag in the page's configurable message, which is not included by default. The CVSS v3.1 base score is 3.7, reflecting low confidentiality impact and high attack complexity.
Potential Impact
An attacker can obtain limited sensitive information about other users, including email addresses, profile data, roles, and membership order details without authentication. However, exploitation requires a specific configuration (presence of a user smart tag in the confirmation page message) that is not present by default, reducing the risk. There is no impact on integrity or availability.
Mitigation Recommendations
Upgrade the User Registration & Membership plugin to version 5.2.8 or later where this issue is fixed. If upgrading is not immediately possible, ensure that the membership confirmation page does not include user smart tags in its configurable messages to prevent information disclosure. No other mitigation is indicated.
The User Registration & Membership WordPress plugin before 5.2.8 does not verify that the visitor requesting its membership confirmation page owns… (CVE-2026-86407)
Description
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.
CVSS v3.1
Score 3.7low
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-86407 affects the User Registration & Membership WordPress plugin prior to version 5.2.8. The vulnerability arises because the membership confirmation page fails to verify ownership of the account named in the request, nor confirms that any registration or purchase has occurred. This allows unauthenticated attackers to retrieve sensitive user information such as email addresses, profile fields, roles, and membership order details. Exploitation depends on the presence of a user smart tag in the page's configurable message, which is not included by default. The CVSS v3.1 base score is 3.7, reflecting low confidentiality impact and high attack complexity.
Potential Impact
An attacker can obtain limited sensitive information about other users, including email addresses, profile data, roles, and membership order details without authentication. However, exploitation requires a specific configuration (presence of a user smart tag in the confirmation page message) that is not present by default, reducing the risk. There is no impact on integrity or availability.
Mitigation Recommendations
Upgrade the User Registration & Membership plugin to version 5.2.8 or later where this issue is fixed. If upgrading is not immediately possible, ensure that the membership confirmation page does not include user smart tags in its configurable messages to prevent information disclosure. No other mitigation is indicated.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-wr2r-r9vc-rr7g
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-86407"]
- Database Specific Severity
- LOW
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aa741a555bf5e2cf5489bed
Added to database: 09/14/2026, 00:36:53 UTC
Last enriched: 09/14/2026, 00:42:44 UTC
Last updated: 09/14/2026, 04:01:23 UTC
Views: 3
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