CVE-2026-15451 Details
Description
The MemberPress Corporate Accounts plugin for WordPress is vulnerable to Privilege Escalation in versions up to, and including, 1.5.39. This is due to a mass assignment vulnerability in the 'add_sub_account_user' function that passes the raw 'userdata' array to 'wp_insert_user' without filtering dangerous keys like role or ID. This makes it possible for authenticated attackers, with subscriber-level access and above who hold a corporate account, to create new administrator accounts or hijack existing administrator accounts by overwriting their email addresses. The vulnerability was partially patched in version 1.5.39.
A privilege escalation vulnerability has been identified in the MemberPress Corporate Accounts plugin for WordPress, affecting versions through 1.5.39. The issue arises from a mass assignment vulnerability in the 'add_sub_account_user' function, which transmits the unfiltered 'userdata' array to 'wp_insert_user'. This oversight allows authenticated attackers with subscriber-level access or higher, who possess a corporate account, to create new administrator accounts or take over existing ones by altering their email addresses. Although version 1.5.39 includes a partial fix, the vulnerability persists in earlier versions.
Users are advised to update the MemberPress Corporate Accounts plugin to version 1.6.0 or a newer patched version.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 12, 2026CISA-ADP
Assessed Sep 14, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-269 | Improper Privilege Management | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| MemberPress Corporate Accounts | <= 1.5.39 (semver) |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 14, 2026 | CVE Modified | CISA-ADP |
| Sep 12, 2026 | New CVE Received | [email protected] |