How severe is CVE-2026-15759?

Medium severity. CVSS v3 base score is 6.4 out of 10.

XSS in Themeatelier Chathelp – Click To Chat Button, Woocommerce Order & Floating Form

CVE-2026-15759

The ChatHelp – Click to Chat Button, WooCommerce Chat to Order & Floating Chat Form plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'number' and 'group' Shortcode Attributes in all versions up to, and including, 3.5.1…

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

Themeatelier Chathelp – Click To Chat Button, Woocommerce Order & Floating Form — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Frequently asked questions

What is CVE-2026-15759?: CVE-2026-15759 is a medium-severity vulnerability in Themeatelier Chathelp – Click To Chat Button, Woocommerce Order & Floating Form, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-07-17.
How severe is CVE-2026-15759?: Medium severity. CVSS v3 base score is 6.4 out of 10.