What is CVE-2026-76546?

CVE-2026-76546 is a medium-severity vulnerability in User Profile Builder, classified under Cross-site Scripting. CVSS score: 6.8/10. Published 2026-08-29.

How severe is CVE-2026-76546?

Medium severity. CVSS v3 base score is 6.8 out of 10.

XSS in User Profile Builder

CVE-2026-76546

The User Profile Builder WordPress plugin before 4.0.1 does not escape the output of one of its optional shortcodes, allowing users with a role as low as contributor to perform Stored Cross-Site Scripting attacks against any user viewing the affected content, including administrators. The shortcode is not enabled by default.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (4.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H.

Affected products

Unknown User Profile Builder

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

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

Frequently asked questions

What is CVE-2026-76546?: CVE-2026-76546 is a medium-severity vulnerability in User Profile Builder, classified under Cross-site Scripting. CVSS score: 6.8/10. Published 2026-08-29.
How severe is CVE-2026-76546?: Medium severity. CVSS v3 base score is 6.8 out of 10.