Chat Help – Click to Chat Button & Form <= 3.1.3 - Missing Authorization to Unauthenticated Sensitive Information Exposure
| CVE | CVE-2026-15291 |
|---|---|
| CVSS | 7.5 (High) |
| Publicly Published | November 18, 2025 |
| Last Updated | July 10, 2026 |
| Researcher |
NumeX
|
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.
References
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
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Vulnerability Details for ChatHelp – Click to Chat Button, WooCommerce Chat to Order & Floating Chat Form
| Software Type | Plugin |
|---|---|
| Software Slug | chat-help (view on wordpress.org) |
| Patched? | Yes |
| Remediation | Update to version 3.1.4, or a newer patched version |
| Affected Version |
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| Patched Version |
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Recent vulnerabilities in ChatHelp – Click to Chat Button, WooCommerce Chat to Order & Floating Chat Form
| # | Title | CVE ID | CVSS | Researchers | Date |
|---|---|---|---|---|---|
| 1 | ChatHelp <= 3.5.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'number' and 'group' Shortcode Attributes | CVE-2026-15759 | Wordfence PRISM | July 16, 2026 | |
| 2 | Chat Help <= 3.1.3 - Missing Authorization | CVE-2025-66099 | Kim YunJi | November 11, 2025 | |
| 3 | Appsero <= 2.0.0 - Missing Authorization via handle_optin_optout | CVE-2024-32110 | Dhabaleshwar Das | April 11, 2024 |
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