CVE-2019-18426

Known Exploited Public Exploit

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.

Category

8.2
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 54.71% Top 5%
KEV Since 
Vendor Advisory facebook.com
Affected: Facebook WhatsApp Desktop
Published at:
Updated at:

References

Link Tags
https://www.facebook.com/security/advisories/cve-2019-18426 vendor advisory
http://packetstormsecurity.com/files/157097/WhatsApp-Desktop-0.3.9308-Cross-Site-Scripting.html exploit vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2019-18426?
CVE-2019-18426 has been scored as a high severity vulnerability.
How to fix CVE-2019-18426?
To fix CVE-2019-18426, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-18426 being actively exploited in the wild?
It is confirmed that CVE-2019-18426 is actively exploited. Be extra cautious if you are using vulnerable components. According to its EPSS score, there is a ~55% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2019-18426?
CVE-2019-18426 affects Facebook WhatsApp Desktop.
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