The supply chain attack surface in WordPress plugins has always been particularly dangerous because the ecosystem encourages users to install many small single-purpose plugins from individual developers, most of whom aren't security-focused organizations. Buying out an established plugin with a large install base is a clever approach because you inherit years of user trust that took the original developer a long time to build.

The deeper structural issue is that plugin update notifications function as an implicit trust signal. Users see "update available" and click without questioning whether the author is still the same person. A package signing and transfer transparency system similar to what npm has been working toward would help here, but the WordPress ecosystem has historically moved slowly on security infrastructure.