Javascript 5 HITCON CTF 2022 -- Fourchain - Browser Nov 28, 2022 Flare-on Challenge 2019 Write-up Sep 28, 2019 Flare-on Challenge 2018 Write-up Oct 6, 2018 Chakrazy -- exploiting type confusion bug in ChakraCore engine Dec 26, 2017 Learning browser exploitation via 33C3 CTF feuerfuchs challenge Dec 16, 2017