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CVE-2026-1869— User Registration & Membership <= 5.2.0 - Missing Authorization to Unauthenticated Payment Bypass

Quick assessment

Affected
wpeverest User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder
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.

wpeverest User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder是wpeverest的用户注册与会员管理插件。 wpeverest User Registration & Membership 5.2.0及之前版本存在授权问题漏洞，该漏洞源于confirm_

CVSS 6.5 · Medium EPSS 0.30% · P21
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I. Basic Information for CVE-2026-1869

Vulnerability Information
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Vulnerability Title
User Registration & Membership <= 5.2.0 - Missing Authorization to Unauthenticated Payment Bypass
Source: CVE Program / CVE List V5
Vulnerability Description
The User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder plugin for WordPress is vulnerable to unauthorized modification of data due to missing validation checks in the confirm_payment() function in all versions up to, and including, 5.2.0. This makes it possible for unauthenticated attackers to bypass payment processing and activate paid memberships.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
wpeverest User Registration & Membership 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
wpeverest User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder是wpeverest的用户注册与会员管理插件。 wpeverest User Registration & Membership 5.2.0及之前版本存在授权问题漏洞，该漏洞源于confirm_
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
wpeverest User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder 0 ~ 5.2.0 -

II. Public POCs for CVE-2026-1869

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III. Intelligence Information for CVE-2026-1869

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Patches & Fixes for CVE-2026-1869 (1)

Vendor Advisories for CVE-2026-1869 (1)

IV. Related Vulnerabilities

Same product: User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder
Same vendor: wpeverest
Same weakness: CWE-862

V. Comments for CVE-2026-1869

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