EUVD-2026-42800
GHSA-9xxg-hrhj-4868
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Remote unauthenticated GET with no interaction (AV:N/AC:L/PR:N/UI:N) fully discloses the lead store (C:H) with no data modification or outage (I:N/A:N).
Primary rating from Vendor (wordfence).
CVSS VectorVendor: wordfence
Lifecycle Timeline
2DescriptionCVE.org
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.
AnalysisAI
Sensitive information exposure in the Chat Help WordPress plugin versions ≤ 3.1.3 allows unauthenticated attackers to extract customer lead data and WordPress credentials via unprotected REST API endpoints. Attackers can retrieve names, emails, phone numbers, geolocation, and full user account details. No active exploitation or public exploit is known at this time; the vulnerability has a CVSS 7.5 base score but a low EPSS probability (0.47%).
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Same weakness CWE-862 – Missing Authorization
View allSame technique Authentication Bypass
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External POC / Exploit Code
Leaving vuln.today