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CVE-2026-5459— User Frontend: AI Powered Frontend Posting, User Directory, Profile, Membership & User Registration <= 4.3.1 - Unauthenticated Insecure Direct Object Reference to Arbitrary User Subscription Overwrite

CVSS 5.3 · Medium EPSS 0.18% · P8

Possible ATT&CK Techniques 1AI

T1136.001 · Local Account
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I. Basic Information for CVE-2026-5459

Vulnerability Information
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Vulnerability Title
User Frontend: AI Powered Frontend Posting, User Directory, Profile, Membership & User Registration <= 4.3.1 - Unauthenticated Insecure Direct Object Reference to Arbitrary User Subscription Overwrite
Source: NVD (National Vulnerability Database)
Vulnerability Description
The User Frontend: AI Powered Frontend Posting, User Directory, Profile, Membership & User Registration plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 4.3.1 via the payment_page() function due to missing validation on the 'user_id' user controlled key. This makes it possible for unauthenticated attackers to activate a free subscription pack for any user on the site, overwriting their existing paid subscription and causing loss of paid features.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: NVD (National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
wedevsUser Frontend: AI Powered Frontend Posting, User Directory, Profile Builder, Membership & User Registration 0 ~ 4.3.1 -

II. Public POCs for CVE-2026-5459

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III. Intelligence Information for CVE-2026-5459

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Vendor Advisories for CVE-2026-5459 (1)

IV. Related Vulnerabilities

Same product: User Frontend: AI Powered Frontend Posting, User Directory, Profile Builder, Membership & User Registration
Same vendor: wedevs
Same weakness: CWE-639

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