CVE-2026-15291
HighCVSS 7.5Exploitation Probability (EPSS)
Low risk37th percentile - higher than 37% of all known CVEs
Summary
The Chat Help – Click to Chat Button & Form plugin for WordPress up to version 3.1.3 exposes sensitive information via REST API endpoints /wp-json/chat-help/v1/leads and /wp-json/chat-help/v1/leads/{id}. Due to missing authentication and authorization checks, unauthenticated attackers can extract customer names, email addresses, phone numbers, WhatsApp messages, geolocation data, device fingerprinting information, and WordPress account credentials of logged-in users.
Risk Assessment
The organization faces exposure of sensitive customer and user data, leading to privacy breaches, identity theft, and phishing attacks. The lack of access control allows mass data extraction without authentication.
Recommendation
Immediately update the Chat Help plugin to the latest available version. If an update is not possible, temporarily disable the plugin or block access to the REST API endpoints using firewall rules.
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Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS