A bug in WhatsApp for Windows can be exploited to execute malicious code by anyone crafty enough to persuade a user to open a rigged attachment - and, to be fair, it doesn't take much craft to pull that off.
The spoofing flaw, tracked as CVE-2025-30401, affects all versions of WhatsApp Desktop for Windows prior to 2.2450.6, and stems from a bug in how the app handles file attachments.