Vulnerability MAL-2026-19041
Unknown
UNKNOWN RISK
Vulnerabilities without an assigned CVSS score. Severity is not determinable from available data.
14 days ago
October 27, 2026 at 12:00 AM UTC
Malicious code in yazxz (npm)
3.0.0 and 5.0.0
3.0.0 and 5.0.0
Summary
Malicious code in yazxz (npm)
Details
yazxz is a fork of the Baileys WhatsApp Web library that silently subscribes the installer's own WhatsApp account to WhatsApp Channels chosen by the publisher. When the socket connects, code in lib/Socket/newsletter.js sends the WhatsApp w:mex FOLLOW query for the channel ID(s) 120363403463420361@newsletter, 120363405622645148@newsletter, 120363406290651839@newsletter, 120363422741438435@newsletter, using the victim's authenticated session and without telling them. Same behaviour as the PhantomSub family (MAL-2026-17342).
References
Impacted packages
Timeline
Published
14 days ago
October 27, 2026 at 12:00 AM UTC
Last Modified
4 hours ago
November 09, 2026 at 11:15 PM UTC