active · since June 2026
HackerXSS
@err0x420
6
Labs solved
1
Flags captured
#76
Ranking
No reward
Total bounty
Weekly streak
0 consecutive weeks
last 26 weeks
solved
this week
missed
1 lab a week keeps it alive
achievements_unlocked
Achievements · 1/31
progress
3%
MAX★
Lifetime Supporter
1 lifetime
LOCKED
Top Ranking
Reach top 50
LOCKED
Cazador de Labs
1 / 5
LOCKED
Bounty Hunter
0 / 500
LOCKED
Insane Slayer
0 / 1
published_writeups
Writeups · 0
No writeups yet
// @err0x420 hasn't published writeups yet
Vulnerabilities mastered
top 10 categories
XSS
3
CSRF
2
API Abuse
1
Activity
last 90 days
less
more
// track_record
Labs solved
6 labs
EasyNo reward
CSRF Password Change
CSRF
Aug 2026completed
EasyNo reward
CSRF Account Deletion
CSRF
Aug 2026completed
EasyNo reward
12 DOM XSS Parameters for Automated Scanning
XSS
Aug 2026completed
EasyNo reward
Reflected XSS on 404 Error Page
XSS
Jul 2026completed
EasyNo reward
Stored XSS in Post Body
XSS
Jul 2026completed
EasyNo reward
Mass Assignment Privilege Escalation
API Abuse
Jul 2026flag
