VulnerabilityAnalyzed
CVE-2019-18426
WhatsApp Cross-Site Scripting Vulnerability
KEVHIGH 8.2EPSS 67.9%
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 13 June 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
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 3.1
- 8.2 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
- EPSS
- 67.86% probability · 99th percentile
- CISA KEV
- Listed 23 May 2022 · due 13 June 2022
- Weakness
- CWE-79
- Affected
- whatsapp/whatsapp
- Source
- cve-assign@fb.com
CISA notes
Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2019-18426
References
- http://packetstormsecurity.com/files/157097/WhatsApp-Desktop-0.3.9308-Cross-Site-Scripting.htmlExploit, Third Party Advisory, VDB Entry
- https://www.facebook.com/security/advisories/cve-2019-18426Vendor Advisory
- http://packetstormsecurity.com/files/157097/WhatsApp-Desktop-0.3.9308-Cross-Site-Scripting.htmlExploit, Third Party Advisory, VDB Entry
- https://www.facebook.com/security/advisories/cve-2019-18426Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-18426US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.