CVE-2026-15930: CWE-862 Missing Authorization in Simple Membership
A critical vulnerability (CVE-2026-15930) exists in the Simple Membership WordPress plugin before version 4.7.8. The plugin fails to verify if user creation during registration was successful before using the returned user ID to update an account. This flaw allows unauthenticated attackers to overwrite the primary administrator's account data, including the email address, enabling account takeover via the password reset process.
AI Analysis
Technical Summary
CVE-2026-15930 is a missing authorization vulnerability (CWE-862) in the Simple Membership WordPress plugin versions prior to 4.7.8. The plugin does not properly check whether user creation failed during registration before using the returned user ID to update account information. This logic flaw permits unauthenticated attackers to overwrite the primary administrator's account details, such as the email address, which can then be exploited to take over the administrator account through the password reset functionality.
Potential Impact
An unauthenticated attacker can overwrite the primary administrator's account data, including the email address, which allows them to take control of the administrator account via the password reset flow. This leads to a full compromise of the administrator privileges within the affected WordPress site.
Mitigation Recommendations
No official patch or remediation level is currently confirmed. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to the registration functionality or monitor for suspicious account changes related to the administrator account.
CVE-2026-15930: CWE-862 Missing Authorization in Simple Membership
Description
A critical vulnerability (CVE-2026-15930) exists in the Simple Membership WordPress plugin before version 4.7.8. The plugin fails to verify if user creation during registration was successful before using the returned user ID to update an account. This flaw allows unauthenticated attackers to overwrite the primary administrator's account data, including the email address, enabling account takeover via the password reset process.
CVSS v3.1
Score 9.4critical
Affected software
Simple Membership
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-15930 is a missing authorization vulnerability (CWE-862) in the Simple Membership WordPress plugin versions prior to 4.7.8. The plugin does not properly check whether user creation failed during registration before using the returned user ID to update account information. This logic flaw permits unauthenticated attackers to overwrite the primary administrator's account details, such as the email address, which can then be exploited to take over the administrator account through the password reset functionality.
Potential Impact
An unauthenticated attacker can overwrite the primary administrator's account data, including the email address, which allows them to take control of the administrator account via the password reset flow. This leads to a full compromise of the administrator privileges within the affected WordPress site.
Mitigation Recommendations
No official patch or remediation level is currently confirmed. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to the registration functionality or monitor for suspicious account changes related to the administrator account.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-07-16T07:28:21.275Z
- State
- PUBLISHED
Threat ID: 6a70364ebf32cb7a34183112
Added to database: 08/03/2026, 06:33:50 UTC
Last enriched: 08/10/2026, 15:08:57 UTC
Last updated: 09/17/2026, 22:01:33 UTC
Views: 41
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