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
8/10
Slacker Slash is a path traversal vulnerability in Bun-based web applications caused by desynchronization between Bun's WHATWG-compliant URL parser (which preserves multiple leading slashes and backslashes) and POSIX-normalizing filesystem operations (which collapse them). Attackers bypass string-based middleware checks like startsWith() using double-slash notation (//admin) or sibling directory prefixes (public_backup) while the filesystem still resolves the requested file.
path-traversal
middleware-bypass
normalization-desync
url-parsing
bun-runtime
authentication-bypass
directory-traversal
javascript
security-research
web-security
Bun
ze3ter
Mohamed Salem Eddah
WHATWG
POSIX
Node.js path module