Web - Server Web - Server

Discover the mechanisms, protocols and technologies used on the Internet and learn to abuse them!

These challenges are designed to train users on HTML, HTTP and other server side mechanisms. The following series of challenges will cultivate a better understanding of techniques such as : Basic workings of multiple authentication mechanisms, handling form data, inner workings of web applications, etc. ...

Prerequisites:
– Understand HTML.
– Understand the HTTP protocol.
– Ability to manipulate a web browser.

challenges 96 Challenges

Results Name Validations Number of points  Explanation for the scores Difficulty  Difficulty Author Note ↓↑  Notation Solution Date
pas_valide JWT - Revoked token 2% 6436 25 ArnC 6 20 March 2020
pas_valide PHP - Remote Xdebug 1% 1543 25 mayfly 4 18 March 2020
pas_valide CRLF 9% 32346 20 g0uZ 7 31 July 2011
pas_valide SQL injection - Authentication - GBK 3% 10139 30 dvor4x 4 2 December 2015
pas_valide Java - Spring Boot 1% 2394 40 dvor4x 3 24 December 2016
pas_valide NodeJS - Prototype Pollution Bypass 1% 577 45 Worty 1 22 October 2021
pas_valide Nginx - SSRF Misconfiguration 1% 267 30 .Yo0x 0 27 September 2024
pas_valide GraphQL - Introspection 2% 4090 20 apges01 4 19 January 2023
pas_valide JWT - Public key 2% 4044 30 Jrmbt 5 21 August 2019
pas_valide PHP - Path Truncation 2% 5557 35 Geluchat 6 25 March 2015
pas_valide Flask - Development server 1% 1118 30 Sanlokii 1 29 November 2023
pas_valide SQL Injection - Second Order 1% 246 55 k4ndar3c 1 29 November 2023
pas_valide API - Broken Access 2 1% 584 40 Nishacid , Mika 1 18 January 2024
pas_valide Weak password 31% 112274 10 g0uZ 7 3 October 2006
pas_valide PHP - Apache configuration 1% 2638 25 erk3 , nemoz 4 8 July 2022
pas_valide Backup file 16% 55249 15 g0uZ 10 27 February 2011
pas_valide HTTP - User-agent 24% 85936 10 g0uZ 10 3 October 2006
pas_valide Command injection - Filter bypass 3% 7862 30 sambecks 6 20 September 2017
pas_valide API - Broken Access 2% 5498 15 Nishacid , Mika 4 18 January 2024
pas_valide SQL injection - Filter bypass 1% 3056 80 sambecks 7 21 July 2014
pas_valide File upload - Polyglot 1% 509 45 Cyxo 1 8 July 2022
pas_valide Install files 13% 44694 15 g0uZ 7 7 October 2006
pas_valide XSLT - Code execution 2% 3826 30 ghozt 5 16 July 2017
pas_valide HTTP - Open redirect 19% 68419 10 Swissky 10 2 August 2017
pas_valide Server Side Request Forgery 1% 1973 50 sambecks 7 22 June 2018
pas_valide GraphQL - Backend injection 1% 481 40 apges01 1 19 January 2023
pas_valide JWT - Unsecure Key Handling 1% 883 35 Nishacid , Mika 5 23 February 2023
pas_valide HTTP - Headers 16% 55871 15 Arod 9 11 January 2015
pas_valide Elixir - EEx 1% 359 35 lolo42 1 29 November 2023
pas_valide Nginx - Root Location Misconfiguration 1% 1071 15 .Yo0x 0 27 September 2024
pas_valide SQL Injection - Routed 2% 5580 35 soka 5 24 December 2016
pas_valide JWT - Unsecure File Signature 1% 2499 25 Nishacid , Mika 3 23 February 2023
pas_valide GraphQL - Injection 1% 873 30 apges01 2 19 January 2023
pas_valide PHP - register globals 5% 16202 25 g0uZ 2 8 October 2011
pas_valide SQL injection - Insert 1% 3274 40 sambecks 4 23 February 2015
pas_valide SQL injection - Time based 2% 5985 45 ycam 4 11 September 2015
pas_valide File upload - Null byte 7% 24517 25 g0uZ 4 26 December 2012
pas_valide SQL injection - File reading 2% 6059 40 Arod 3 19 October 2014
pas_valide SQL Truncation 2% 6958 35 Geluchat 2 1 May 2015
pas_valide HTTP - IP restriction bypass 9% 30914 10 Cyrhades 8 23 March 2021
pas_valide PHP - Eval 2% 3749 40 chmod 10 8 November 2018
pas_valide PHP - assert() 5% 15885 25 Birdy42 10 26 November 2016
pas_valide PHP - Unserialize overflow 1% 805 55 mayfly 2 4 April 2020
pas_valide Nginx - Alias Misconfiguration 1% 2903 15 .Yo0x 2 27 September 2024
pas_valide XML External Entity 2% 5802 35 sambecks 2 20 October 2014
pas_valide PHP - Serialization 2% 6888 35 Arod 3 3 February 2014
pas_valide HTTP - Directory indexing 22% 78913 15 g0uZ 7 7 October 2006
pas_valide GraphQL - Mutation 1% 1630 40 CanardMandarin 2 20 October 2020
pas_valide NoSQL injection - Authentication 3% 7907 35 mastho 8 31 May 2015
pas_valide Node - Serialize 1% 1357 35 Mhd_Root 2 24 February 2021
pas_valide LDAP injection - Blind 1% 3553 55 g0uZ 2 8 June 2013
pas_valide HTTP - Improper redirect 12% 43523 15 Arod 10 26 November 2014
pas_valide SQL injection - Error 3% 8209 40 sambecks 5 4 March 2015
pas_valide Local File Inclusion - Double encoding 4% 13160 30 zM_ 4 13 June 2016
pas_valide HTTP - Cookies 13% 46642 20 g0uZ 8 7 October 2006
pas_valide PHP - type juggling 3% 9064 30 vic 4 10 March 2016
pas_valide HTTP - POST 14% 50794 15 Th1b4ud 10 14 August 2018
pas_valide PHP - Eval - Advanced filters bypass 1% 647 40 Podalirius 2 8 July 2022
pas_valide Local File Inclusion - Wrappers 2% 3778 40 sambecks 4 2 March 2016
pas_valide Directory traversal 10% 36123 25 g0uZ 3 31 July 2011
pas_valide Remote File Inclusion 4% 12086 30 g0uZ 8 25 November 2015
pas_valide SQL injection - Blind 3% 7930 50 g0uZ 6 27 February 2011
pas_valide XSS - Server Side 1% 3045 20 Elf 4 23 June 2023
pas_valide HTML - Source code 48% 173530 5 g0uZ 5 3 October 2006
pas_valide File upload - Double extensions 10% 35727 20 g0uZ 10 24 December 2012
pas_valide JWT - Weak secret 4% 12513 25 Jrmbt 7 21 August 2019
pas_valide SQL injection - Authentication 14% 47284 30 g0uZ 11 27 February 2011
pas_valide Local File Inclusion 8% 26107 30 g0uZ 4 2 October 2011
pas_valide HTTP - Verb tampering 14% 47320 15 g0uZ 10 3 February 2011
pas_valide PHP - Command injection 19% 68424 10 sambecks 10 20 September 2017
pas_valide XPath injection - Blind 1% 2435 75 g0uZ 5 27 December 2012
pas_valide PHP - preg_replace() 3% 9276 30 sambecks 4 2 March 2016
pas_valide Insecure Code Management 4% 14222 20 Swissky 6 29 September 2019
pas_valide File upload - ZIP 3% 9896 30 ghozt 3 3 August 2017
pas_valide LDAP injection - Authentication 3% 10607 35 g0uZ 8 26 May 2013
pas_valide SQL injection - String 7% 22475 30 g0uZ 10 24 December 2012
pas_valide Python - Blind SSTI Filters Bypass 1% 710 75 Podalirius 5 7 September 2021
pas_valide API - Mass Assignment 1% 3384 20 Nishacid , Mika 2 18 January 2024
pas_valide Python - dotenv 1% 94 70 jrjgjk 0 27 September 2024
pas_valide File upload - MIME type 8% 28794 20 g0uZ 10 26 December 2012
pas_valide JWT - Header Injection 1% 1347 30 Nishacid , Mika 2 23 February 2023
pas_valide XPath injection - Authentication 2% 6768 35 g0uZ 6 27 December 2012
pas_valide SQL injection - Numeric 5% 15558 35 g0uZ 7 24 December 2012
pas_valide XPath injection - String 2% 4026 40 g0uZ 5 26 May 2013
pas_valide PHP - Filters 6% 20159 25 g0uZ 3 27 February 2011
pas_valide PHP - Loose Comparison 3% 7461 30 ghozt 4 10 January 2018
pas_valide PHP - Unserialize Pop Chain 1% 747 55 Worty 2 22 October 2021
pas_valide JWT - Introduction 5% 17999 20 Kn0wledge 5 21 August 2019
pas_valide Java - Server-side Template Injection 4% 11019 30 righettod 6 29 November 2015
pas_valide Python - Server-side Template Injection Introduction 2% 4874 25 Podalirius 7 7 September 2021
pas_valide NodeJS - vm escape 1% 793 50 Podalirius 1 15 April 2021
pas_valide NoSQL injection - Blind 1% 3128 45 ghozt 6 26 November 2016
pas_valide Node - Eval 1% 3082 30 Mhd_Root 7 24 February 2021
pas_valide Yaml - Deserialization 1% 1491 35 Nishacid 2 20 April 2021
pas_valide Flask - Unsecure session 1% 3019 20 Sanlokii 1 29 November 2023
pas_valide Java - Custom gadget deserialization 1% 215 50 Elweth 0 28 December 2023

Challenge Results Challenge Results

Pseudo Challenge Lang Date
flutschrobbe Web - Server  Weak password en 30 May 2025 at 22:21
mr robotic imp Web - Server  HTTP - IP restriction bypass ru 30 May 2025 at 22:18
flutschrobbe Web - Server  HTML - Source code en 30 May 2025 at 22:16
kam Web - Serveur  Nginx - Root Location Misconfiguration fr 30 May 2025 at 22:12
mr robotic imp Web - Server  HTML - Source code ru 30 May 2025 at 22:07
teemo Web - Serveur  Python dotenv fr 30 May 2025 at 22:02
iupjipegz Web - Serveur  Nginx - Root Location Misconfiguration fr 30 May 2025 at 22:01
arcxnxx Web - Server  PHP - Command injection en 30 May 2025 at 21:58
iupjipegz Web - Serveur  Nginx - Alias Misconfiguration fr 30 May 2025 at 21:53
PhillLewis Web - Serveur  PHP - assert() fr 30 May 2025 at 21:52