User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor <= 4.0.5 - Authenticated (Author+) Open Redirect via Content Restriction Custom Redirect URL

Medium 5.4 CWE-601Fixed in 4.0.6
ID
WPSEC-2026-2006
Plugin
User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor (profile-builder)
Affected
all versions before 4.0.6
Remediation
Update to 4.0.6 or later.
CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness
CWE-601
Usage
Plugin Medium · Affected versions Medium among sites WPSec scans, 2026-10-30
Attack surface
User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor on WPSec AttackSurface
Fix released
Published

Description

The User Profile Builder plugin for WordPress is vulnerable to Open Redirect via the content restriction custom redirect URL in all versions up to, and including, 4.0.5, due to the URL being stored with only esc_url_raw() and passed to wp_redirect() without host validation. This makes it possible for authenticated attackers with author-level access and above to make their restricted posts redirect visitors to an arbitrary external site.

References

Published by WPSec. Provided as is, without warranty. Corrections: contact us.

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