CVE-2019-18426

WhatsApp Cross-Site Scripting Vulnerability

Meta Platforms — WhatsApp

Added to KEV catalog: 23 May 2022
Federal remediation due date: 13 June 2022
Weakness classification (CWE): CWE-79

CISA Description

A vulnerability in WhatsApp Desktop when paired with WhatsApp for iPhone allows cross-site scripting and local file reading.

Required action

Apply updates per vendor instructions.

Notes

https://nvd.nist.gov/vuln/detail/CVE-2019-18426

View on NVD View on MITRE CVE View full CISA catalog

More Meta Platforms Vulnerabilities

CVE-2025-55177

Meta Platforms WhatsApp Incorrect Authorization Vulnerability

CVE-2019-3568

WhatsApp VOIP Stack Buffer Overflow Vulnerability

Confirm Your Exposure

Is this vulnerability present in your environment?

CRS delivers independent VAPT assessments that identify exactly which known-exploited vulnerabilities exist in your network, applications, and infrastructure.

Explore VAPT Services