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 sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Score

CVSS 3.1 6.4 Medium

Status

Deferred - security@wordfence.com

Published

2026-08-07

Last modified

2026-08-07

Weaknesses

CWE-79

Affected products

• Ultra Addons For Contact Form 7 (Themefic)

References

• https://plugins.trac.wordpress.org/changeset/3586004/ultimate-addons-for-contact-form-7/trunk/addons/range-slider/js/ra…
• https://www.wordfence.com/threat-intel/vulnerabilities/id/b111bfd5-3eff-4255-9123-cae38bfb73c3?source=cve