CVE-2026-15451 Privilege escalation in MemberPress Corporate Accounts
Authenticated subscribers with corporate accounts can escalate privileges to administrator via mass assignment in sub-account creation.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-15451?
CVE-2026-15451 is a high-severity vulnerability in MemberPress Corporate Accounts, published on 12 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-269
Which versions are affected by CVE-2026-15451?
How do I fix CVE-2026-15451?
No fix has been published for CVE-2026-15451 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-15451 being exploited?
There is no known exploitation of CVE-2026-15451 in the wild and no public exploit code.
Sources
Also known as GHSA-43m3-49cj-3hqf.