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 92 Challenges

Results Name Validations Number of points  Explanation for the scores Difficulty  Difficulty Author Note  Notation Solution Date
pas_valide HTML - Source code 49% 157653 5 g0uZ 5 3 October 2006
pas_valide HTTP - IP restriction bypass 8% 23843 10 Cyrhades 7 23 March 2021
pas_valide HTTP - Open redirect 19% 61706 10 Swissky 10 2 August 2017
pas_valide HTTP - User-agent 24% 77872 10 g0uZ 10 3 October 2006
pas_valide Weak password 32% 102765 10 g0uZ 7 3 October 2006
pas_valide PHP - Command injection 19% 61107 10 sambecks 10 20 September 2017
pas_valide API - Broken Access 1% 1536 15 Nishacid , Mika 2 18 January 2024
pas_valide Backup file 16% 51264 15 g0uZ 10 27 February 2011
pas_valide HTTP - Directory indexing 23% 72516 15 g0uZ 7 7 October 2006
pas_valide HTTP - Headers 16% 51086 15 Arod 9 11 January 2015
pas_valide HTTP - POST 14% 45673 15 Th1b4ud 10 14 August 2018
pas_valide HTTP - Improper redirect 13% 39715 15 Arod 10 26 November 2014
pas_valide HTTP - Verb tampering 14% 43325 15 g0uZ 10 3 February 2011
pas_valide Install files 13% 41076 15 g0uZ 6 7 October 2006
pas_valide API - Mass Assignment 1% 1065 20 Nishacid , Mika 2 18 January 2024
pas_valide CRLF 10% 29905 20 g0uZ 7 31 July 2011
pas_valide File upload - Double extensions 11% 32812 20 g0uZ 10 24 December 2012
pas_valide File upload - MIME type 8% 26148 20 g0uZ 10 26 December 2012
pas_valide Flask - Unsecure session 1% 1335 20 Sanlokii 1 29 November 2023
pas_valide GraphQL - Introspection 1% 2806 20 apges01 4 19 January 2023
pas_valide HTTP - Cookies 14% 42773 20 g0uZ 8 7 October 2006
pas_valide Insecure Code Management 4% 12537 20 Swissky 6 29 September 2019
pas_valide JWT - Introduction 5% 15457 20 Kn0wledge 5 21 August 2019
pas_valide XSS - Server Side 1% 1706 20 Elf 3 23 June 2023
pas_valide Directory traversal 11% 33185 25 g0uZ 3 31 July 2011
pas_valide File upload - Null byte 7% 22399 25 g0uZ 4 26 December 2012
pas_valide JWT - Revoked token 2% 5248 25 ArnC 6 20 March 2020
pas_valide JWT - Weak secret 4% 10682 25 Jrmbt 6 21 August 2019
pas_valide JWT - Unsecure File Signature 1% 1504 25 Nishacid , Mika 3 23 February 2023
pas_valide PHP - assert() 5% 14483 25 Birdy42 10 26 November 2016
pas_valide PHP - Apache configuration 1% 1883 25 erk3 , nemoz 3 8 July 2022
pas_valide PHP - Filters 6% 18599 25 g0uZ 3 27 February 2011
pas_valide PHP - register globals 5% 14964 25 g0uZ 2 8 October 2011
pas_valide PHP - Remote Xdebug 1% 1352 25 mayfly 4 18 March 2020
pas_valide Python - Server-side Template Injection Introduction 2% 3806 25 Podalirius 7 7 September 2021
pas_valide File upload - ZIP 3% 8892 30 ghozt 3 3 August 2017
pas_valide Flask - Development server 1% 488 30 Sanlokii 1 29 November 2023
pas_valide GraphQL - Injection 1% 547 30 apges01 2 19 January 2023
pas_valide Command injection - Filter bypass 3% 7158 30 sambecks 6 20 September 2017
pas_valide Java - Server-side Template Injection 4% 10001 30 righettod 6 29 November 2015
pas_valide JWT - Public key 2% 3446 30 Jrmbt 5 21 August 2019
pas_valide JWT - Header Injection 1% 852 30 Nishacid , Mika 2 23 February 2023
pas_valide Local File Inclusion 8% 24190 30 g0uZ 4 2 October 2011
pas_valide Local File Inclusion - Double encoding 4% 12125 30 zM_ 4 13 June 2016
pas_valide Node - Eval 1% 2581 30 Mhd_Root 7 24 February 2021
pas_valide PHP - Loose Comparison 3% 6847 30 ghozt 4 10 January 2018
pas_valide PHP - preg_replace() 3% 8620 30 sambecks 4 2 March 2016
pas_valide PHP - type juggling 3% 8435 30 vic 4 10 March 2016
pas_valide Remote File Inclusion 4% 11175 30 g0uZ 8 25 November 2015
pas_valide SQL injection - Authentication 14% 42942 30 g0uZ 11 27 February 2011
pas_valide SQL injection - Authentication - GBK 3% 9001 30 dvor4x 4 2 December 2015
pas_valide SQL injection - String 7% 20307 30 g0uZ 10 24 December 2012
pas_valide XSLT - Code execution 2% 3502 30 ghozt 5 16 July 2017
pas_valide Elixir - EEx 1% 151 35 lolo42 1 29 November 2023
pas_valide JWT - Unsecure Key Handling 1% 580 35 Nishacid , Mika 5 23 February 2023
pas_valide LDAP injection - Authentication 3% 9743 35 g0uZ 8 26 May 2013
pas_valide Node - Serialize 1% 1136 35 Mhd_Root 2 24 February 2021
pas_valide NoSQL injection - Authentication 3% 7281 35 mastho 8 31 May 2015
pas_valide PHP - Path Truncation 2% 5170 35 Geluchat 6 25 March 2015
pas_valide PHP - Serialization 2% 6448 35 Arod 3 3 February 2014
pas_valide SQL injection - Numeric 5% 13953 35 g0uZ 7 24 December 2012
pas_valide SQL Injection - Routed 2% 4917 35 soka 5 24 December 2016
pas_valide SQL Truncation 2% 6235 35 Geluchat 2 1 May 2015
pas_valide XML External Entity 2% 5216 35 sambecks 2 20 October 2014
pas_valide XPath injection - Authentication 2% 6265 35 g0uZ 6 27 December 2012
pas_valide Yaml - Deserialization 1% 1237 35 Nishacid 2 20 April 2021
pas_valide API - Broken Access 2 1% 65 40 Nishacid , Mika 1 18 January 2024
pas_valide GraphQL - Backend injection 1% 322 40 apges01 1 19 January 2023
pas_valide GraphQL - Mutation 1% 1453 40 CanardMandarin 2 20 October 2020
pas_valide Java - Spring Boot 1% 2219 40 dvor4x 3 24 December 2016
pas_valide Local File Inclusion - Wrappers 2% 3422 40 sambecks 4 2 March 2016
pas_valide PHP - Eval 2% 3373 40 chmod 10 8 November 2018
pas_valide PHP - Eval - Advanced filters bypass 1% 508 40 Podalirius 2 8 July 2022
pas_valide SQL injection - Error 3% 7135 40 sambecks 5 4 March 2015
pas_valide SQL injection - Insert 1% 2977 40 sambecks 4 23 February 2015
pas_valide SQL injection - File reading 2% 5703 40 Arod 3 19 October 2014
pas_valide XPath injection - String 2% 3711 40 g0uZ 5 26 May 2013
pas_valide File upload - Polyglot 1% 375 45 Cyxo 1 8 July 2022
pas_valide NodeJS - Prototype Pollution Bypass 1% 441 45 Worty 1 22 October 2021
pas_valide NoSQL injection - Blind 1% 2787 45 ghozt 6 26 November 2016
pas_valide SQL injection - Time based 2% 5295 45 ycam 4 11 September 2015
pas_valide Java - Custom gadget deserialization 1% 46 50 Elweth 0 28 December 2023
pas_valide NodeJS - vm escape 1% 671 50 Podalirius 1 15 April 2021
pas_valide Server Side Request Forgery 1% 1715 50 sambecks 7 22 June 2018
pas_valide SQL injection - Blind 3% 7110 50 g0uZ 6 27 February 2011
pas_valide LDAP injection - Blind 1% 3207 55 g0uZ 2 8 June 2013
pas_valide PHP - Unserialize overflow 1% 708 55 mayfly 2 4 April 2020
pas_valide PHP - Unserialize Pop Chain 1% 561 55 Worty 2 22 October 2021
pas_valide SQL Injection Second Order 1% 119 55 k4ndar3c 1 29 November 2023
pas_valide Python - Blind SSTI Filters Bypass 1% 548 75 Podalirius 5 7 September 2021
pas_valide XPath injection - Blind 1% 2177 75 g0uZ 5 27 December 2012
pas_valide SQL injection - Filter bypass 1% 2479 80 sambecks 7 21 July 2014