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CVE-2026-16310— MemberDash <= 1.8.5 - Unauthenticated Account Takeover via Insecure Direct Object Reference via 'id' Parameter

Quick assessment

Affected
LearnDash MemberDash
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 MemberDash 插件在 1.8.5 及之前的所有版本中，由于“id”参数缺乏对用户可控键的验证，存在不安全直接对象引用（IDOR）漏洞。这使得未认证的攻击者可以在注册时提供任意用户 ID，从而更改任何 WordPress 用户（包括管理员）的密码，并在不向受害者发送任何通知的情况下接管其账户。

CVSS 9.8 · Critical

Possible ATT&CK Techniques 1 AI

T1187 · Forced Authentication
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I. Basic Information for CVE-2026-16310

Vulnerability Information
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Vulnerability Title
MemberDash <= 1.8.5 - Unauthenticated Account Takeover via Insecure Direct Object Reference via 'id' Parameter
Source: CVE Program / CVE List V5
Vulnerability Description
The MemberDash plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 1.8.5 via the 'id' parameter due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to change the password of any WordPress user, including administrators, by supplying an arbitrary user ID during registration, and take over their account without any notification sent to the victim.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
LearnDash MemberDash 0 ~ 1.8.5 -

II. Public POCs for CVE-2026-16310

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III. Intelligence Information for CVE-2026-16310

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Vendor Advisories for CVE-2026-16310 (1)

Vendor Pages for CVE-2026-16310 (1)

IV. Related Vulnerabilities

Same vendor: LearnDash
Same weakness: CWE-639

V. Comments for CVE-2026-16310

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