CVE-2019-18426
Facebook · published 2020-01-21
Source record Collected from the National Vulnerability Database (NVD)
CISA Known Exploited Vulnerabilities
CISA lists this CVE as known exploited (added 2022-05-23).
- CISA's name for it: WhatsApp Cross-Site Scripting Vulnerability
- CISA's description: A vulnerability in WhatsApp Desktop when paired with WhatsApp for iPhone allows cross-site scripting and local file reading.
- Known ransomware campaign use, per CISA: Unknown
Source: CISA KEV catalog (CC0 1.0).
Description
Description by Facebook, Inc. via the CVE Program.
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.
Status at the source
- NVD status: Analyzed
Affected products, as the source lists them
| Vendor | Product | Versions |
|---|---|---|
| WhatsApp Desktop | 0.3.9309: affected unspecified – before 0.3.9309: affected |
Products named in NVD's CPE match criteria (1)
cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:desktop:*:*:*
DeSpy has not checked any unit, hardware revision or firmware. A product missing here is not a statement that it is unaffected.
Scores, as their sources published them
- CVSS 3.1: 8.2 HIGH — as published by NIST (Primary)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N - CVSS 3.1: 8.2 HIGH — as published by CISA-ADP (Secondary)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N - CVSS 2.0: 5.8 MEDIUM — as published by NIST (Primary)
AV:N/AC:M/Au:N/C:P/I:P/A:N - SSVC — CISA's assessment (SSVC 2.0.3, CISA Coordinator): Exploitation: active · Automatable: no · Technical impact: partial
DeSpy does not score records. These are the sources' own values.
Weaknesses
Sources
References the source lists
- http://packetstormsecurity.com/files/157097/WhatsApp-Desktop-0.3.9308-Cross-Site-Scripting.html
- https://www.facebook.com/security/advisories/cve-2019-18426
- http://packetstormsecurity.com/files/157097/WhatsApp-Desktop-0.3.9308-Cross-Site-Scripting.html
- https://www.facebook.com/security/advisories/cve-2019-18426
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-18426
Source dates: published 2020-01-21, last changed 2026-06-17. DeSpy's copy of this version is dated 2026-09-28.
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