CVE-2026-15291 Missing authorization in ChatHelp – Click to Chat Button, WooCommerce Chat to Order & Floating Chat Form
Unauthenticated attackers can access sensitive customer and user data via exposed REST API endpoints in the Chat Help WordPress plugin.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-15291?
CVE-2026-15291 is a high-severity missing authorization vulnerability in themeatelier ChatHelp – Click to Chat Button, WooCommerce Chat to Order & Floating Chat Form, published on 10 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Chat Help – Click to Chat Button & Form plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 3.1.3 via the REST API endpoints /wp-json/chat-help/v1/leads and /wp-json/chat-help/v1/leads/{id}. This is due to the plugin not performing any authentication and authorization checks. This makes it possible for unauthenticated attackers to extract sensitive data including customer names, email addresses, phone numbers, WhatsApp messages, complete geolocation data (IP addresses, city, country, ISP, coordinates), device fingerprinting information (browser, OS, screen resolution), and WordPress account credentials (user IDs, usernames, emails, names) for logged-in users who submit forms.
Weakness: CWE-862
Which versions are affected by CVE-2026-15291?
How do I fix CVE-2026-15291?
No fix has been published for CVE-2026-15291 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-15291 being exploited?
There is no known exploitation of CVE-2026-15291 in the wild and no public exploit code.
Sources
Also known as GHSA-9xxg-hrhj-4868.