All vulnerabilities
CVE-2026-100186

User Profile Builder <= 4.0.3 - Unauthenticated Stored Cross-Site Scripting via First Name Field

cozmoslabs User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor
Open in ThreatlineRecord JSON
CVSS
7.2High
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.24%Chance of exploitation activity in the next 30 days, higher than 14% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version yet
Published16 Oct 2026Updated 16 Oct 2026CVE List

What fixes it

No source in this snapshot names a fixed version.

Description

The User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via First Name Field in all versions up to, and including, 4.0.3 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. This vulnerability is only exploitable when the Email Confirmation feature is enabled in Profile Builder.

Text from CVE List

Affected versions 1

  • User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editoraffected: all versions through 4.0.3CVE List

References 7