VULNERABILITY INTELLIGENCE

CVE-2019-18426

CVSS score8.2 HIGH

EPSS probability67.86%

CISA KEVKnown exploited vulnerability

Published2020-01-21

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N

Known Exploited Vulnerability

WhatsApp Cross-Site Scripting Vulnerability

Vendor / product: Meta Platforms / WhatsApp

Description

A vulnerability in WhatsApp Desktop versions prior to 0.3.9309 when paired with WhatsApp for iPhone versions prior to 2.20.10 allows cross-site scripting and local file reading. Exploiting the vulnerability requires the victim to click a link preview from a specially crafted text message.

Weakness classification

cve-assign@fb.com: CWE-79
nvd@nist.gov: CWE-79

Primary references

cve-assign@fb.com — Exploit, Third Party Advisory, VDB Entry
cve-assign@fb.com — Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0 — US Government Resource