⚠ Actively exploited
Added to CISA KEV on 2022-05-23. Federal agencies required to patch by 2022-06-13. Required action: Apply updates per vendor instructions..

CVE-2019-18426 — Cross-site Scripting in Whatsapp Desktop

CWE-79 — Cross-site Scripting6 documents6 sources
Severity
8.2HIGHNVD
EPSS
55.3%
top 1.93%
CISA KEV
KEV
Added 2022-05-23
Due 2022-06-13
Exploit
Exploited in wild
Active exploitation observed
Affected products
2
Facebook Whatsapp DesktopWhatsapp
Timeline
PublishedJan 21
KEV addedMay 23
Latest updateMay 24
KEV dueJun 13
CISA Required Action: Apply updates per vendor instructions.

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:NExploitability: 2.8 | Impact: 4.7

Affected Packages2 packages

▶CVEListV5facebook/whatsapp_desktopunspecified — 0.3.9309+1
▶NVDwhatsapp/whatsapp< 0.3.9309+1

🔴Vulnerability Details

3
GHSA
GHSA-x67c-8vp2-26mr: A vulnerability in WhatsApp Desktop versions prior to 0↗2022-05-24
▶
CVEList
CVE-2019-18426: A vulnerability in WhatsApp Desktop versions prior to 0↗2020-01-21
▶
VulnCheck
WhatsApp Cross-Site Scripting Vulnerability↗2019
▶

💥Exploits & PoCs

1
Exploit-DB
WhatsApp Desktop 0.3.9308 - Persistent Cross-Site Scripting↗2020-04-06
▶

📋Vendor Advisories

1
CISA
WhatsApp Cross-Site Scripting Vulnerability↗2022-05-23
▶
CVE-2019-18426 — Cross-site Scripting | cvebase