CVE-2026-15451 MemberPress Corporate Accounts - Privilege Escalation

MemberPress Corporate Accounts WordPress plugin <= 1.5.39 contains a privilege escalation caused by mass assignment in 'add_sub_account_user' passing unfiltered 'userdata' to 'wp_insert_user', letting authenticated corporate account users escalate privileges, exploit requires subscriber-level access or higher.

CVSS base score 8.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.24% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Privilege Escalation
Impact
Privilege Escalation
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
12 September 2026
Updated
15 October 2026
Weakness
CWE-269

Vendor fix

Update to a version later than 1.5.39 where the vulnerability is fully patched.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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