bug-bounty621
facebook427
xss316
google100
rce99
csrf60
microsoft56
web354
account-takeover53
writeup50
sqli41
apple38
ssrf34
cve33
exploit32
dos31
privilege-escalation28
defi28
cloudflare27
smart-contract-vulnerability25
idor24
subdomain-takeover24
smart-contract23
clickjacking23
ethereum23
vulnerability-disclosure21
access-control21
auth-bypass19
malware19
remote-code-execution18
lfi17
cors16
reverse-engineering15
race-condition15
cloud15
authentication-bypass14
solidity14
oauth12
info-disclosure12
aws12
browser11
phishing11
sql-injection11
delegatecall11
denial-of-service11
web-application-security10
web-security9
token-theft9
vulnerability9
responsible-disclosure9
0
vulnerability
Site-wide CSRF vulnerability discovered on Messenger.com where CSRF token (fb_dtsg) validation was completely missing on multiple endpoints, allowing attackers to perform unauthorized actions like changing settings and removing users from group threads. The vulnerability affected all POST requests regardless of whether the token was modified, removed, or omitted entirely.
csrf
cross-site-request-forgery
messenger
facebook
token-validation
security-testing
bug-bounty
web-security
ajax
post-request
messenger.com
Facebook
@phwd
@mazen160
fb_dtsg
XMessengerDotComSettingsEditController