High

Tawk.To Live Chat <= 0.5.4 - Missing Authorization to Visitor Monitoring & Chat Removal

  • Disclosed: 08.11.2021
  • Updated: 11.10.2026 10:22

The Tawk.To Live Chat WordPress plugin before 0.6.0 does not have capability and CSRF checks in the tawkto_setwidget and tawkto_removewidget AJAX actions, available to any authenticated user. The first one allows low-privileged users (including simple subscribers) to change the 'tawkto-embed-widget-page-id' and 'tawkto-embed-widget-widget-id' parameters. Any authenticated user can thus link the vulnerable website to their own Tawk.to instance. Consequently, they will be able to monitor the vulnerable website and interact with its visitors (receive contact messages, answer, ...). They will also be able to display an arbitrary Knowledge Base. The second one will remove the live chat widget from pages.

Affected software

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PlatformPackageVulnerable versionsFixed in
WordPress plugin Tawk.To Live Chat < 0.6.0 0.6.0

References

CVSS score 8/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-862
Platform
WordPress
Package
Tawk.To Live Chat
Disclosed
08.11.2021
Updated
11.10.2026 10:22

Sources and licenses

Wordfence Intelligence - 4c3ee9fa-5d66-4f84-818f-ceec2f0c0b96 - Wordfence Intelligence

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Wordfence Intelligence
Wordfence Intelligence - Defiant, Inc.
Copyright Defiant, Inc. All rights reserved except as granted below.
License grant, section 3.1 of the Wordfence Intelligence Terms and Conditions (January 26, 2026):

Subject to this Agreement, Company hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute the Service. Any copy you make for such purposes is authorized provided that you reproduce Company’s copyright designation, this license, and the license of any disclosed Company licensor in any such copy.

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Vulnerability history: Tawk.To Live Chat

All published vulnerabilities of this package (WordPress plugin), newest first. Shows whether this is a one-off slip or a package that needs watching.

This is the only known vulnerability of this package.

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