Stored Cross-Site Scripting Vulnerability in User Frontend Plugin for WordPress
CVE-2026-96574

6.4MEDIUM

Key Information:

Vendor

WordPress
Status
User Frontend – Membership, User Registration, User Profile, User Directory & Content Restriction With Frontend Post Submission
Vendor
CVE Published:
10 October 2026

What is CVE-2026-96574?

The User Frontend – Membership, User Registration, User Profile, User Directory & Content Restriction plugin for WordPress is susceptible to a Stored Cross-Site Scripting attack through the 'wpuf_payment_method' parameter. This vulnerability arises from inadequate input sanitization and output escaping. Authenticated attackers with subscriber-level access can exploit this flaw by injecting arbitrary web scripts into pages. The exploitation involves appending a valid gateway keyword to the HTML payload, which results in the sanitize_text_field() function returning only the keyword, while the malicious content is stored and later presented unescaped, potentially compromising user data and site integrity.

Affected Version(s)

User Frontend – Membership, User Registration, User Profile, User Directory & Content Restriction with Frontend Post Submission 0 <= 4.3.12

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/wp-user-fronte...
https://plugins.trac.wordpress.org/browser/wp-user-fronte...

CVSS V3.1

Score:
6.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Tarcísio Luchesi De Almeida Silva (Poystick)
.