bug-bounty484
google314
xss279
microsoft259
facebook219
rce172
apple153
exploit142
malware107
bragging-post102
account-takeover100
cve89
csrf84
privilege-escalation80
authentication-bypass66
stored-xss65
writeup62
phishing57
reflected-xss57
browser55
react54
dos53
ssrf52
access-control50
input-validation49
cloudflare49
cross-site-scripting48
supply-chain47
node47
aws46
docker46
sql-injection45
smart-contract45
ethereum44
web-security43
oauth43
web-application43
defi43
web340
reverse-engineering39
lfi37
burp-suite36
idor36
vulnerability-disclosure35
html-injection33
race-condition33
csp-bypass32
smart-contract-vulnerability32
clickjacking31
information-disclosure30
0
6/10
vulnerability
Polygon's proof-of-stake consensus mechanism contained a vulnerability in its staking smart contract that allowed attackers to bypass the ⅔ consensus threshold by decreasing total staking power, potentially enabling fund drainage and unlimited withdrawals. Whitehat Niv Yehezkel discovered and reported the bug, which was patched and rewarded with a $75,000 bounty.
consensus-bypass
proof-of-stake
smart-contract-vulnerability
polygon
layer-2
staking
validator
bugfix-review
blockchain-security
ethereum
Polygon
Immunefi
Niv Yehezkel
Ethereum
MATIC
Heimdall
Bor