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CVE-2026-15451— MemberPress Corporate Accounts <= 1.5.39 - Authenticated (Subscriber+) Privilege Escalation via Mass Assignment in Sub-Account Creation

Quick assessment

Affected
MemberPress MemberPress Corporate Accounts
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

memberpress MemberPress Corporate Accounts是memberpress公司的一款会员制网站的企业账户管理插件。 MemberPress Corporate Accounts 1.5.39及之前版本存在权限许可和访问控制问题漏洞，该漏洞源于add_sub_account_user函数存在批量赋值漏洞，将原始userdata数组传递给wp_insert_user时未过滤role或ID等危险键，可能导致具有订阅者及以上权限且持有企业账户的已认证攻击者创建新的管理员账户或通过

CVSS 8.8 · High EPSS 0.24% · P14

Affected Version Matrix 1

VendorProduct Version RangeStatus
MemberPress MemberPress Corporate Accounts ≤ 1.5.39 affected
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I. Basic Information for CVE-2026-15451

Vulnerability Information
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Vulnerability Title
MemberPress Corporate Accounts <= 1.5.39 - Authenticated (Subscriber+) Privilege Escalation via Mass Assignment in Sub-Account Creation
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
特权管理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
MemberPress Corporate Accounts 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
memberpress MemberPress Corporate Accounts是memberpress公司的一款会员制网站的企业账户管理插件。 MemberPress Corporate Accounts 1.5.39及之前版本存在权限许可和访问控制问题漏洞，该漏洞源于add_sub_account_user函数存在批量赋值漏洞，将原始userdata数组传递给wp_insert_user时未过滤role或ID等危险键，可能导致具有订阅者及以上权限且持有企业账户的已认证攻击者创建新的管理员账户或通过
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
MemberPress MemberPress Corporate Accounts 0 ~ 1.5.39 -

II. Public POCs for CVE-2026-15451

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III. Intelligence Information for CVE-2026-15451

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Vendor Pages for CVE-2026-15451 (2)

IV. Related Vulnerabilities

Same vendor: MemberPress
Same weakness: CWE-269

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