CVE-2026-6431

User Profile Builder <= 3.15.7 - Unauthenticated Stored Cross-Site Scripting via 'Biographical Info' Meta Field

7.2 High

The User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'Biographical Info' meta field parameter in all versions up to, and including, 3.15.7 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: Low
Integrity: Low
Availability: None

Exploit likelihood

0.42%Up 0.2 points since Sep 8, 2026

What each source reports

CVE List Score used 7.2

User Profile Builder <= 3.15.7 - Unauthenticated Stored Cross-Site Scripting via 'Biographical Info' Meta Field

Record: CVE-2026-6431
CVSS 3.1: 7.2 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

EUVDEUVD-2026-72367 7.2

Record: EUVD-2026-72367
CVSS 3.1: 7.2 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-5489-mc3f-rfqq 7.2

The User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor...

Record: GHSA-5489-mc3f-rfqq
CVSS 3.1: 7.2 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

NVD 7.2

Record: CVE-2026-6431
CVSS 3.1: 7.2 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

Affected products

cozmoslabs user profile builder – beautiful user registration forms, user profiles & user role editor

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-6431 is a high vulnerability (CVSS 7.2) in Cozmoslabs User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor, published September 7, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.42%, the 36th percentile. No source names a fixed version.