ACTIVELY EXPLOITED
CVE-2019-18426: WhatsApp Cross-Site Scripting Vulnerability
| Vendor | Meta Platforms |
|---|---|
| Product | |
| Actively exploited | Yes |
| Added to CISA KEV | 23 May 2022 |
| CISA federal deadline | 13 Jun 2022 |
| Weakness (CWE) | CWE-79 |
Required action (CISA's text)
Apply updates per vendor instructions.
Description (NVD)
A vulnerability in WhatsApp Desktop when paired with WhatsApp for iPhone allows cross-site scripting and local file reading.
SOURCES
Other Meta Platforms flaws
- CVE-2025-55182: Meta React Server Components Remote Code Execution Vulnerability
- CVE-2025-55177: Meta Platforms WhatsApp Incorrect Authorization Vulnerability
- CVE-2019-3568: WhatsApp VOIP Stack Buffer Overflow Vulnerability
Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.