Check Point Advisories

WhatsApp Desktop Cross Site Scripting (CVE-2019-18426)

Check Point Reference: CPAI-2019-2541
Date Published: 13 Jun 2022
Severity: High
Last Updated: Monday 13 June, 2022
Industry Reference:CVE-2019-18426
Protection Provided by:

Security Gateway
R81, R80, R77, R75

Who is Vulnerable? WhatsApp Desktop 3.x
WhatsApp Desktop 2.0
Vulnerability Description A cross site scripting vulnerability exists in WhatsApp Desktop. Successful exploitation of this vulnerability would allow remote attackers to inject an arbitrary web script into the affected system.

Protection Overview

This protection detects attempts to exploit this vulnerability.

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R81 / R80 / R77 / R75

  1. In the IPS tab, click Protections and find the WhatsApp Desktop Cross Site Scripting (CVE-2019-18426) protection using the Search tool and Edit the protection's settings.
  2. Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name:  Web Server Enforcement Violation.
Attack Information:  WhatsApp Desktop Cross Site Scripting (CVE-2019-18426)

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