Vulnerability · Published Sep 25, 2026 · Assigned by Wordfence

CVE-2026-95866User Profile Builder <= 4.0.2 - Unauthenticated Stored Cross-Site Scripting via Avatar Field

High 7.2

In plain English

A high-severity cross-site scripting in User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor from cozmoslabs. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities).

Severity (CVSS 3.1)7.2High

Exploit odds (30 days)0.3%top 82.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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 Avatar Field in all versions up to, and including, 4.0.2 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. The zero-length multipart file branch in wppb_save_avatar_value() writes the raw request value directly to user meta, bypassing the wppb_save_attachment_id()/wppb_verify_attachment_id() validation path; the stored payload is later adopted as a WordPress attachment URL and rendered unescaped by wppb_default_fields_make_upload_button() when an administrator views the affected account.

Affected products (as reported)

Vendor	Product	Versions
cozmoslabs	User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor	0 – through 4.0.2

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

In plain English

Official description

Affected products (as reported)

References