What is CVE-2026-3139?

CVE-2026-3139 is a medium-severity vulnerability in Cozmoslabs User Profile Builder – Beautiful Registration Forms, Profiles & Role Editor, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-03-31.

How severe is CVE-2026-3139?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Cozmoslabs User Profile Builder – Beautiful Registration Forms, Profiles & Role Editor

CVE-2026-3139

The User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor plugin for WordPress is vulnerable to Insecure Direct Object Reference in versions up to, and including, 3.15.5 via the wppb_save_avatar_value()…

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.000 (10.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

Affected products

Cozmoslabs User Profile Builder – Beautiful Registration Forms, Profiles & Role Editor — versions 0

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

Frequently asked questions

What is CVE-2026-3139?: CVE-2026-3139 is a medium-severity vulnerability in Cozmoslabs User Profile Builder – Beautiful Registration Forms, Profiles & Role Editor, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-03-31.
How severe is CVE-2026-3139?: Medium severity. CVSS v3 base score is 4.3 out of 10.