XSS in Themefic Ultra Addons For Contact Form 7

CVE-2026-12801

The Ultra Addons for Contact Form 7 plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Range Slider 'data-label' and 'data-separator' attributes in all versions up to, and including, 3.5.43 due to insufficient input…

Vulnerability class: XSS (Cross-Site Scripting)

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-12801?
CVE-2026-12801 is a medium-severity vulnerability in Themefic Ultra Addons For Contact Form 7, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-08-07.
How severe is CVE-2026-12801?
Medium severity. CVSS v3 base score is 6.4 out of 10.