npm · Malicious package advisory
Malwarefeed-widget-helper
MAL-2026-16332
Malicious code in feed-widget-helper (npm)
Details
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (b5a81a96715497c25b18687ba7b9b42e919c23e700ede8d9944d41d6052d7f83) The package's main entry executes a top-level side effect that reads document.cookie and sends it via fetch to a hardcoded webhook.site collector URL (http://webhook.site/67dba5f1-70f5-413e-9299-2ad886bb77fa) over plain HTTP. Any environment that imports or requires this package leaks its browser cookies to an anonymous third-party listener controlled by the package author. The destination is a webhook.site inbox — an anonymous request-capture service unrelated to any legitimate feed-widget functionality — and the transmission fires unconditionally on load, with no caller opt-in or configuration.
Compromised versions (1)
- 1.0.0
Any computer that installed or ran a compromised version should be considered fully compromised. Rotate every secret on that machine from a clean environment.