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 97 Challenges

Results Name Validations Number of points  Explanation for the scores Difficulty  Difficulty Author Note ↓↑  Notation Solution Date
pas_valide JWT - Revoked token 2% 6999 25 ArnC 6 20 March 2020
pas_valide PHP - Remote Xdebug 1% 1641 25 mayfly 4 18 March 2020
pas_valide CRLF 9% 33185 20 g0uZ 7 31 July 2011
pas_valide SQL injection - Authentication - GBK 3% 10587 30 dvor4x 4 2 December 2015
pas_valide Java - Spring Boot 1% 2490 40 dvor4x 3 24 December 2016
pas_valide NodeJS - Prototype Pollution Bypass 1% 631 45 Worty 1 22 October 2021
pas_valide GraphQL - Introspection 2% 4676 20 apges01 4 19 January 2023
pas_valide Nginx - SSRF Misconfiguration 1% 670 30 .Yo0x 1 27 September 2024
pas_valide JWT - Public key 2% 4361 30 Jrmbt 5 21 August 2019
pas_valide PHP - Path Truncation 2% 5745 35 Geluchat 7 25 March 2015
pas_valide Flask - Development server 1% 1371 30 Sanlokii 1 29 November 2023
pas_valide SQL Injection - Second Order 1% 294 55 k4ndar3c 1 29 November 2023
pas_valide API - Broken Access 2 1% 767 40 Nishacid , Mika 1 18 January 2024
pas_valide Weak password 31% 116242 10 g0uZ 7 3 October 2006
pas_valide Backup file 15% 56970 15 g0uZ 10 27 February 2011
pas_valide PHP - Apache configuration 1% 2957 25 erk3 , nemoz 4 8 July 2022
pas_valide HTTP - User-agent 24% 89349 10 g0uZ 10 3 October 2006
pas_valide File upload - Polyglot 1% 597 45 Cyxo 1 8 July 2022
pas_valide Command injection - Filter bypass 3% 8279 30 sambecks 6 20 September 2017
pas_valide SQL injection - Filter bypass 1% 3237 80 sambecks 7 21 July 2014
pas_valide GraphQL - Injection 1% 1072 30 apges01 2 19 January 2023
pas_valide API - Broken Access 2% 7259 15 Nishacid , Mika 4 18 January 2024
pas_valide Install files 13% 46069 15 g0uZ 7 7 October 2006
pas_valide Server Side Request Forgery 1% 2066 50 sambecks 7 22 June 2018
pas_valide Elixir - EEx 1% 465 35 lolo42 1 29 November 2023
pas_valide XSLT - Code execution 2% 4011 30 ghozt 5 16 July 2017
pas_valide HTTP - Open redirect 19% 71232 10 Swissky 10 2 August 2017
pas_valide JWT - Unsecure Key Handling 1% 1069 35 Nishacid , Mika 5 23 February 2023
pas_valide GraphQL - Backend injection 1% 565 40 apges01 1 19 January 2023
pas_valide HTTP - Headers 16% 57904 15 Arod 9 11 January 2015
pas_valide SQL Injection - Routed 2% 5844 35 soka 5 24 December 2016
pas_valide PHP - register globals 5% 16716 25 g0uZ 2 8 October 2011
pas_valide JWT - Unsecure File Signature 1% 2953 25 Nishacid , Mika 3 23 February 2023
pas_valide SQL injection - Insert 1% 3396 40 sambecks 4 23 February 2015
pas_valide SQL injection - Time based 2% 6217 45 ycam 4 11 September 2015
pas_valide File upload - Null byte 7% 25374 25 g0uZ 4 26 December 2012
pas_valide SQL injection - File reading 2% 6366 40 Arod 3 19 October 2014
pas_valide SQL Truncation 2% 7275 35 Geluchat 2 1 May 2015
pas_valide Nginx - Root Location Misconfiguration 1% 2606 15 .Yo0x 1 27 September 2024
pas_valide PHP - Eval 2% 3947 40 chmod 10 8 November 2018
pas_valide Local File Inclusion - Double encoding 4% 13697 30 zM_ 4 13 June 2016
pas_valide PHP - Unserialize overflow 1% 854 55 mayfly 2 4 April 2020
pas_valide HTTP - IP restriction bypass 9% 34105 10 Cyrhades 8 23 March 2021
pas_valide XML External Entity 2% 6013 35 sambecks 2 20 October 2014
pas_valide Yaml - Deserialization 1% 1618 35 Nishacid 2 20 April 2021
pas_valide PHP - Eval - Advanced filters bypass 1% 725 40 Podalirius 2 8 July 2022
pas_valide PHP - assert() 5% 16428 25 Birdy42 10 26 November 2016
pas_valide Nginx - Alias Misconfiguration 2% 4185 15 .Yo0x 3 27 September 2024
pas_valide LDAP injection - Blind 1% 3680 55 g0uZ 2 8 June 2013
pas_valide NoSQL injection - Authentication 3% 8197 35 mastho 8 31 May 2015
pas_valide SQL injection - Error 3% 8624 40 sambecks 5 4 March 2015
pas_valide GraphQL - Mutation 1% 1730 40 CanardMandarin 2 20 October 2020
pas_valide HTTP - Directory indexing 22% 81692 15 g0uZ 7 7 October 2006
pas_valide PHP - Serialization 2% 7154 35 Arod 3 3 February 2014
pas_valide Node - Serialize 1% 1490 35 Mhd_Root 2 24 February 2021
pas_valide HTTP - Cookies 13% 48205 20 g0uZ 8 7 October 2006
pas_valide PHP - type juggling 3% 9351 30 vic 4 10 March 2016
pas_valide Directory traversal 10% 37338 25 g0uZ 3 31 July 2011
pas_valide HTTP - POST 14% 52980 15 Th1b4ud 10 14 August 2018
pas_valide HTTP - Improper redirect 12% 45020 15 Arod 10 26 November 2014
pas_valide Local File Inclusion - Wrappers 2% 3977 40 sambecks 4 2 March 2016
pas_valide XSS - Server Side 1% 3608 20 Elf 4 23 June 2023
pas_valide Python - Blind SSTI Filters Bypass 1% 794 75 Podalirius 5 7 September 2021
pas_valide Remote File Inclusion 4% 12514 30 g0uZ 8 25 November 2015
pas_valide LDAP injection - Authentication 3% 10968 35 g0uZ 8 26 May 2013
pas_valide PHP - preg_replace() 3% 9561 30 sambecks 4 2 March 2016
pas_valide SQL injection - Blind 3% 8233 50 g0uZ 6 27 February 2011
pas_valide JWT - Weak secret 4% 13235 25 Jrmbt 8 21 August 2019
pas_valide Local File Inclusion 8% 26990 30 g0uZ 4 2 October 2011
pas_valide HTML - Source code 48% 180541 5 g0uZ 6 3 October 2006
pas_valide SQL injection - Authentication 13% 48892 30 g0uZ 11 27 February 2011
pas_valide Ruby on Rails - ransack 1% 73 30 koma 0 23 June 2025
pas_valide PHP - Command injection 19% 71414 10 sambecks 10 20 September 2017
pas_valide File upload - Double extensions 10% 36950 20 g0uZ 10 24 December 2012
pas_valide XPath injection - Blind 1% 2531 75 g0uZ 5 27 December 2012
pas_valide HTTP - Verb tampering 13% 48858 15 g0uZ 10 3 February 2011
pas_valide API - Mass Assignment 2% 4284 20 Nishacid , Mika 2 18 January 2024
pas_valide Insecure Code Management 4% 14867 20 Swissky 6 29 September 2019
pas_valide File upload - ZIP 3% 10378 30 ghozt 3 3 August 2017
pas_valide SQL injection - String 7% 23327 30 g0uZ 10 24 December 2012
pas_valide File upload - MIME type 8% 29822 20 g0uZ 10 26 December 2012
pas_valide XPath injection - Authentication 2% 6986 35 g0uZ 6 27 December 2012
pas_valide PHP - Filters 6% 20798 25 g0uZ 3 27 February 2011
pas_valide SQL injection - Numeric 5% 16158 35 g0uZ 7 24 December 2012
pas_valide JWT - Header Injection 1% 1621 30 Nishacid , Mika 2 23 February 2023
pas_valide XPath injection - String 2% 4153 40 g0uZ 5 26 May 2013
pas_valide PHP - Loose Comparison 3% 7758 30 ghozt 4 10 January 2018
pas_valide JWT - Introduction 6% 19084 20 Kn0wledge 5 21 August 2019
pas_valide PHP - Unserialize Pop Chain 1% 850 55 Worty 2 22 October 2021
pas_valide Python - dotenv 1% 177 70 jrjgjk 1 27 September 2024
pas_valide Java - Server-side Template Injection 4% 11471 30 righettod 6 29 November 2015
pas_valide Python - Server-side Template Injection Introduction 2% 5405 25 Podalirius 7 7 September 2021
pas_valide NodeJS - vm escape 1% 862 50 Podalirius 2 15 April 2021
pas_valide NoSQL injection - Blind 1% 3294 45 ghozt 6 26 November 2016
pas_valide Flask - Unsecure session 1% 3652 20 Sanlokii 1 29 November 2023
pas_valide Node - Eval 1% 3305 30 Mhd_Root 8 24 February 2021
pas_valide Java - Custom gadget deserialization 1% 317 50 Elweth 0 28 December 2023

Challenge Results Challenge Results

Pseudo Challenge Lang Date
speedstu Web - Serveur  SQL injection - Insert fr 12 December 2025 at 19:01
Kostya Web - Server  SQL injection - Authentication - GBK en 12 December 2025 at 19:01
ns8 Web - Serveur  SQL Truncation fr 12 December 2025 at 18:56
0x4A4D Web - Server  Remote File Inclusion en 12 December 2025 at 18:50
Glaucidium Web - Server  PHP - Serialization en 12 December 2025 at 18:45
w2sabit Web - Serveur  PHP - Injection de commande fr 12 December 2025 at 18:44
speedstu Web - Serveur  SQL injection - Error fr 12 December 2025 at 18:41
Pandatorix Web - Serveur  XSLT - Exécution de code fr 12 December 2025 at 18:38
TomRic33 Web - Serveur  PHP - Injection de commande fr 12 December 2025 at 18:31
eyquemro Web - Serveur  Remote File Inclusion fr 12 December 2025 at 18:30