MA
active · since March 2026
HunterXSS
@mattkingst
18
Labs solved
3
Flags captured
#34
Ranking
$1,500
Total bounty
Monthly streak
1 consecutive month · 0/2 this month — 2 left to keep it
year 2026
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
achieved (≥2)
pending
no streak
2 labs with a flag per month to keep it
achievements_unlocked
Achievements · 3/31
progress
10%
BRONCE
Top Ranking
Currently top 34
BRONCE
Constancia Mensual
1 meses consecutivos
BRONCE
Veterano
4 meses en BBLABS
LOCKED
Cazador de Labs
3 / 5
LOCKED
Bounty Hunter
0 / 500
published_writeups
Writeups · 0
No writeups yet
// @mattkingst hasn't published writeups yet
Vulnerabilities mastered
top 10 categories
XSS
7
Open Redirect
4
CSRF
3
API Abuse
2
Path Traversal
1
SSRF
1
Activity
last 90 days
less
more
// track_record
Labs solved
18 labs
Medium$750
self_svg_XSS — Self-XSS → Bot-Assisted ATO via SVG upload
XSS
11 days agocompleted
Medium$750
Stored XSS via SVG File Upload
XSS
17 days agocompleted
MediumVDP
Stored XSS to Admin Password Change
XSS
11 days agoflag
MediumVDP
6 Progressive DOM XSS Challenges
XSS
11 days agocompleted
EasyVDP
Mass Assignment Privilege Escalation Lab
API Abuse
17 days agocompleted
EasyVDP
Path Traversal via Avatar Upload
Path Traversal
17 days agocompleted
EasyVDP
Mass Assignment Privilege Escalation
API Abuse
17 days agoflag
EasyVDP
SSRF with Corporate Token Exfiltration
SSRF
17 days agoflag
EasyVDP
Open Redirect Playground
Open Redirect
17 days agocompleted
EasyVDP
URL Shortener Open Redirect
Open Redirect
18 days agocompleted