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Web CTF challenges

2,461 Web CTF challenges from 309 CTFs (2011–2026), 673 with writeups.

Top web techniques

#xss 70 #sql-injection 41 #ssti 30 #ssrf 26 #prototype-pollution 25 #path-traversal 25 #csp-bypass 23 #command-injection 21 #web 21 #filter-bypass 14 #xs-leak 14 #lfi 12 #rce 12 #race-condition 12 #css-injection 11

Challenges

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Challenge CTF Weight Has
Flyer WHY 2025 Finals – files
Flyer WHY 2025 Quals – files
Framework_Follies BreachCTF 2025 23.86 files
Free_Parking_Network GPN 2025 – files
Free_Parking_Network_v2 GPN 2025 – files
GOllum NNS 2025 – files
GRAFANA Hack.lu 2025 98.02 files
Game_Tester DeadSec 2025 31.29 files
GemViewer ASIS 2025 Finals 96.29 files
Get_into_my_Cute_Small_Planner BITSCTF 2025 – files
GigaUpload SAS 2025 Quals 20.72 files
Gigs MetaCTF 2025 – files
Giraffana DeadSec 2025 31.29 files
Glacier_AI_Store Glacier 2025 – files
Glacier_Echo Glacier 2025 – files
Glacier_Profiles Glacier 2025 – files
Glacier_ToDo Glacier 2025 – files
Go_Go_Cyber_Ranger VuwCTF 2025 – files
Go_Touch_Grass BackdoorCTF 2025 – files
Goofy_Ahh_Frontend SAS 2025 Quals 20.72 files
HAKKSHOP Hack.lu 2025 98.02 files
HTTP_1_must_die Platypwn 2025 – files
Hack_the_bot_1 PwnMe 2025 Quals 24.95 files
Hack_the_bot_2 PwnMe 2025 Quals 24.95 files
Hacker_Hub Auvergnhack 2025 – files
Hate_Notes CrewCTF 2025 38.93 files
Hft GreyCatTheFlag 2025 32.92 files
HgHub ASIS 2025 Finals 96.29 files
Hide_and_Seek Codegate 2025 Quals – files
Homework LINE 2025 – files
Hooman Shakti 2025 34.10 files
IMGC0NV HITCON 2025 – files
Image_Gallery BackdoorCTF 2025 – files
Inspector_Gadget GoogleCTF 2025 – files
Intergalactic_Webhook_Service SunshineCTF 2025 51.65 files
Intro_to_Part_1 GPN 2025 – files
Intro_to_Part_2 GPN 2025 – files
Intro_to_Part_3 GPN 2025 – files
Intro_to_Part_4 GPN 2025 – files
Intro_to_Part_5 GPN 2025 – files