txt.sour.is infosec-write-ups-medium@feeds.twtxt.net "$500 Bounty: Race Condition in Hacker101 CTF Group Join [![]()]() $500 for discovering a timing flaw in Hacker101’s invite system that let us ..."

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$500 Bounty: Race Condition in Hacker101 CTF Group Join

$500 for discovering a timing flaw in Hacker101’s invite system that let users join the same team multiple times

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