CVE-2026-15930 — CRITICAL (9.4)

Vulnerability Description

The Simple Membership WordPress plugin before 4.7.8 does not verify whether user creation failed during registration before using the returned value as a user ID to update an account, allowing unauthenticated attackers to overwrite the primary administrator's account data (including the email address) and take over that account through the password reset flow.

CVSS Score

9.4

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

HIGH

Availability

HIGH

Related Weaknesses (CWE)

CWE-862

References

https://wpscan.com/vulnerability/e46948f1-0e06-4e76-8fc8-df661eb786a5/

FAQ

What is CVE-2026-15930?

CVE-2026-15930 is a vulnerability with a CVSS score of 9.4 (CRITICAL). The Simple Membership WordPress plugin before 4.7.8 does not verify whether user creation failed during registration before using the returned value as a user ID to update an account, allowing unauthe...

How severe is CVE-2026-15930?

CVE-2026-15930 has been rated CRITICAL with a CVSS base score of 9.4/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2026-15930?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.