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CVE-2019-18426

Published: Jan 21, 2020Updated: Oct 24, 2025 Sources: CVE List NVD BDUCWE-79
8.2HIGH
NVD MITRE
EPSS Score
67.9%
Top 0.7%
CISA KEV
Active Exploitation
Since May 23, 2022
Exploits
1 Known
Remediation
Patch Available
Self-Check
Not available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:CC:HI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-79

Affected Products

Meta Platforms Inc
commercial·USaka react-server-dom-parcel, hermes js, facebook, zstandard
WhatsAppLibrary
OSS Libraries / web-framework
WhatsApp DesktopLibrary
OSS Libraries / web-framework
whatsapp
commercialaka whatsapp business, whatsapp desktop
whatsappMobile App
Communications / messaging-chat
Facebook
commercial·USaka meta, facebook inc.
WhatsApp Desktop
Communications

Exploitability

CISA Known Exploited Vulnerability
Added to KEV:May 23, 2022
Remediation due:Jun 13, 2022

Required action: Apply updates per vendor instructions.

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

http://packetstormsecurity.com/files/157097/WhatsApp-Desktop-0.3.9308-Cross-Site-Scripting.html
packetstormsecurity.com
https://www.facebook.com/security/advisories/cve-2019-18426
facebook.com
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-18426
cisa.gov
and 1 more references View all →

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