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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.

WordPress 的 MemberPress Corporate Accounts 插件在 1.5.39 版本及之前版本中存在权限提升漏洞。该漏洞源于 函数中的批量赋值（mass assignment）缺陷：该函数将原始的 数组直接传递给 ，而未过滤诸如 或 等危险键。这使得拥有企业账户的已认证攻击者（具备订阅者及以上权限）能够通过覆盖现有管理员账户的电子邮件地址，来创建新的管理员账户或劫持现有管理员账户。该漏洞在 1.5.39 版本中已得到部分修复。

CVSS 8.8 · High
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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

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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