What is CVE-2026-76548?

CVE-2026-76548 is a high-severity vulnerability in User Profile Builder, classified under Improper Authentication. CVSS score: 8.2/10. Published 2026-08-29.

How severe is CVE-2026-76548?

High severity. CVSS v3 base score is 8.2 out of 10.

Auth bypass in User Profile Builder

CVE-2026-76548

The User Profile Builder WordPress plugin before 4.0.1 does not properly restrict its front-end file upload feature, granting unauthenticated visitors capabilities reserved to privileged roles. This allows them to list the site's media library and to modify unpublished posts, pages and media items belonging to other users.

Vulnerability class: Broken Authentication

EPSS: 0.001 (3.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N.

Affected products

Unknown User Profile Builder

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

contact@wpscan.com (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-76548?: CVE-2026-76548 is a high-severity vulnerability in User Profile Builder, classified under Improper Authentication. CVSS score: 8.2/10. Published 2026-08-29.
How severe is CVE-2026-76548?: High severity. CVSS v3 base score is 8.2 out of 10.