AEGLIX vulnerability intelligence
CVE-2019-18426
HIGH · CVSS 8.2 · Analyzed
Published: 2020-01-21 · Updated: 2026-06-17 · Source: NVD
Vulnerability overview
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.
Severity and scoring
- CVSS score
- 8.2 · HIGH
- CVSS version
- 3.1
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
- Weaknesses
- CWE-79
CVSS measures technical severity; it does not establish whether this vulnerability is being exploited in your environment.
Known exploitation and remediation
Listed in CISA’s Known Exploited Vulnerabilities catalog.
- Affected product
- Meta Platforms · WhatsApp
- Added to catalog
- 2022-05-23
- Required action
- Apply updates per vendor instructions.
- CISA remediation due date
- 2022-06-13
CISA deadlines apply to the organizations covered by its directives. Confirm your own remediation requirements.
Verify affected versions and patch availability in the vendor advisory before making changes.
Affected products and versions
cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:desktop:*:*:*
Before (exclusive): 0.3.9309
cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:iphone_os:*:*
Before (exclusive): 2.20.10
These are NVD CPE applicability entries. Some products depend on configuration conditions; consult the official record to confirm applicability.
Advisories and references
- http://packetstormsecurity.com/files/157097/WhatsApp-Desktop-0.3.9308-Cross-Site-Scripting.html
Exploit · Third Party Advisory · VDB Entry
- 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 · Third Party Advisory · VDB Entry
- https://www.facebook.com/security/advisories/cve-2019-18426
Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-18426
US Government Resource