Risk Letters
About Sign in ENDA

Exploited vulnerability

CVE-2019-18426

TLP:CLEAR

WhatsApp Cross-Site Scripting Vulnerability

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

Facts

  • Vendor: Meta Platforms
  • Product: WhatsApp
  • CVSS: 8.2
  • EPSS (probability of exploitation within 30 days): 67.9 %
  • On CISA's Known Exploited Vulnerabilities list since: 23 May 2022
  • First known exploitation: 23 May 2022
  • CISA's deadline for US federal agencies: 13 June 2022
  • Weakness: CWE-79
  • First seen by Risk Letters: 23 May 2022

Members see which Nordic sectors the flaw hits, and what to do about it.

Get the full brief

Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD

© The Risk Letters 2026 · Privacy policy · Terms of sale · Refund policy