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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
Super_domper_filter Dreamhack 2025 – files
Supermassive_Black_Hole UIUCTF 2025 – files
Sweet_Treat DownUnderCTF 2025 91.66 files
Swift_Resume_Service Infobahn 2025 – files
TOOLBARS Hack.lu 2025 98.02 files
TSG_Book TSG 2025 – files
TTD BlueArena 2025 – files
Tacticool_Bin ECW 2025 Quals – files
Talk_Tuah NahamCon 2025 53.77 files
Tar_boom DaVinciCTF 2025 32.59 files
Teemos_Secret smileyCTF 2025 48.61 files
Telemetry Ulisse 2025 24.81 files
TellMeWhy L3HCTF 2025 54.67 files
The_Cake_Warehouse BrunnerCTF 2025 24.66 files
The_Heist JerseyCTF 2025 24.73 files
The_Missing_Letters Null 2025 – files
The_Source_of_Our_Troubles DEADFACE 2025 – files
The_Sundown_Vault PlaidCTF 2025 100.00 files
This_then_what_huh NNS 2025 – files
Thoughts m0leCon 2025 Quals 75.00 files
Ticket_Master justCTF 2025 97.20 files
ToH_Wedding ToH 2025 24.27 files
To_Me_The_One_Who_Loved_You WannaGameChampionship 2025 – files
Todo CubeCTF 2025 24.71 files
Tracer BCACTF 2025 – files
Trading_Post PlaidCTF 2025 100.00 files
Trailing_Danger m0leCon 2025 Quals 75.00 files
Trial_by_Fire CyberApocalypse 2025 – files
Trust WannaGameChampionship 2025 – files
Trust_Issues BackdoorCTF 2025 – files
Try_GoTH LINE 2025 – files
Typst_Note CPCTF 2025 – files
UltimateFreeloader RCTF 2025 – files
Under_the_Beamers ASIS 2025 Quals 96.29 files
Under_the_Beamers_Revenge ASIS 2025 Quals 96.29 files
Unstoppable_force_meets_immovable_object BlitzCTF 2025 23.20 files
Unstoppable_force_meets_immovable_object_2 BlitzCTF 2025 23.20 files
Upload_Issues RITSEC 2025 – files
Upload_Issues_2 RITSEC 2025 – files
Upload_Upload_and_Awayi UIUCTF 2025 – files