bug-bounty480
google297
xss277
microsoft249
facebook211
rce159
apple150
exploit136
bragging-post102
account-takeover98
malware94
csrf84
cve79
privilege-escalation74
authentication-bypass65
stored-xss65
writeup61
reflected-xss57
browser54
react53
ssrf51
phishing50
dos50
input-validation49
cloudflare49
access-control49
cross-site-scripting48
node46
aws46
smart-contract45
docker45
sql-injection45
ethereum44
defi43
web-security43
web-application42
supply-chain42
oauth41
web339
burp-suite36
lfi34
vulnerability-disclosure34
idor34
html-injection33
smart-contract-vulnerability32
race-condition32
clickjacking31
reverse-engineering31
information-disclosure30
csp-bypass30
0
7/10
vulnerability
A penetration tester discovered a critical vulnerability chain in a hosting provider that allowed subdomain takeover without DNS verification. The vulnerability stemmed from missing email confirmation during registration, IDOR in support tickets, and improper CloudFlare delegation architecture that allowed creating and controlling arbitrary subdomains of delegated domains.
subdomain-takeover
idor
stored-xss
blind-xss
csrf
email-verification
cloudflare
dns-configuration
privilege-escalation
authentication-bypass
domain-takeover
hosting-provider
penetration-testing
Valeriy Shevchenko
CloudFlare
InfoSec Write-ups