What is CVE-2026-85680?

CVE-2026-85680 is a high-severity vulnerability in Ultimate Member, classified under Cross-site Scripting. CVSS score: 8.8/10. Published 2026-09-19.

How severe is CVE-2026-85680?

High severity. CVSS v3 base score is 8.8 out of 10.

XSS in Ultimate Member

CVE-2026-85680

The Ultimate Member WordPress plugin before 2.13.1 does not escape a value derived from user supplied profile names before outputting it in the page title, and decodes HTML entities in it after its own sanitisation has already run, allowing unauthenticated attackers who register an account to store JavaScript that will execute when any visitor, including an administrator, views their profile.

Vulnerability class: XSS (Cross-Site Scripting)

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Unknown Ultimate Member

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

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

Frequently asked questions

What is CVE-2026-85680?: CVE-2026-85680 is a high-severity vulnerability in Ultimate Member, classified under Cross-site Scripting. CVSS score: 8.8/10. Published 2026-09-19.
How severe is CVE-2026-85680?: High severity. CVSS v3 base score is 8.8 out of 10.