The new Chinese owner of the popular Polyfill JS project injects malware into more than 100 thousand sites

0x815@feddit.org to Technology@lemmy.world – 895 points –
Polyfill supply chain attack hits 100K+ sites
sansec.io

Archived link

The polyfill.js is a popular open source library to support older browsers. 100K+ sites embed it using the cdn.polyfill.io domain. Notable users are JSTOR, Intuit and World Economic Forum. However, in February this year, a Chinese company bought the domain and the Github account. Since then, this domain was caught injecting malware on mobile devices via any site that embeds cdn.polyfill.io. Any complaints were quickly removed (archive here) from the Github repository.

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Whichever editor let them post "100 thousand" should be spanked one 100 times with the severed hand of whatever asshole wrote it in the first place.