All vulnerabilities
CVE-2019-18426

WhatsApp Cross-Site Scripting Vulnerability

Meta Platforms WhatsAppApplications & CMS
Open in ThreatlineRecord JSON
CVSS
8.2High
ExploitationExploited in the wildAdded to KEV 23 May 2022CISA KEV
Exploit odds (EPSS)67.9%Chance of exploitation activity in the next 30 days, higher than 99% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in0.3.9309Fixed versionCVE List
Federal deadline13 Jun 2022Remediation due date for US federal agenciesCISA KEV
CISA required actionApply updates per vendor instructions. CISA KEV

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Timeline

  1. 21 Jan 2020, 20:30 UTCPublishedCVE List
  2. 6 Apr 2020Exploit code publicExploit-DB
  3. 23 May 2022Added to CISA KEVCISA KEV

Public exploit code and templates 1

  • Webapps exploitWhatsApp Desktop 0.3.9308 - Persistent Cross-Site Scripting 6 Apr 2020Exploit-DB

Listed so defenders can prioritize. Threatline links to the source and does not host exploit code.

Description

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

Text from CVE List

Affected versions 2

  • WhatsApp Desktopaffected: 0.3.9309CVE List
  • WhatsApp Desktopaffected: unspecified before 0.3.9309CVE List

References 3