Web - Client

Client-side technologies implemented in the web browser

At first you will be faced with problems that will require little to no knowledge of web scripting language. Pretty soon the plot thickens ...

These challenges confront you to the use of scripting languages and client-side programming. They are mostly scripts to analyze and understand. This will allow you to learn languages which are in widespread use on the internet.

Prerequisites:
– Understanding a scripting language such javascript/vbscript
– Understanding the operation of a debugger such firebug/javascript console

42 Challenges

Results	Name	Validations	Number of points	Difficulty	Author	Note	Solution	Date
	HTML - disabled buttons	44% 153449	5		Final		10	16 July 2017
	Javascript - Authentication	47% 162079	5		g0uZ		9	8 October 2006
	Javascript - Source	44% 153464	5		g0uZ		5	7 October 2006
	Javascript - Authentication 2	41% 141412	10		na5sim		4	3 February 2011
	Javascript - Obfuscation 1	39% 134038	10		Hel0ck		10	7 October 2006
	Javascript - Obfuscation 2	33% 115917	10		Hel0ck		8	3 February 2011
	Javascript - Native code	25% 86015	15		g0uZ		8	13 March 2011
	Javascript - Webpack	8% 26593	15		CanardMandarin		3	11 August 2020
	Javascript - Obfuscation 3	19% 63435	30		Hel0ck		10	4 February 2011
	XSS - Stored 1	12% 40169	30		g0uZ		10	3 March 2012
	AST - Deobfuscation	1% 1548	35		mhoste , Lxt3h		2	27 June 2023
	CSP Bypass - Inline code	2% 5554	35		CanardMandarin		8	27 October 2020
	CSP Bypass - Nonce 2	1% 521	35		Ruulian		1	27 June 2023
	CSRF - 0 protection	6% 20536	35		sambecks		8	16 February 2016
	Web Socket - 0 protection	1% 894	35		Worty		1	22 October 2021
	XSS DOM Based - Introduction	2% 5872	35		Ruulian		4	12 August 2021
	Flash - Authentication	2% 6358	40		koma		1	18 June 2012
	XSS DOM Based - AngularJS	1% 2514	40		Ruulian		3	12 August 2021
	XSS DOM Based - Eval	1% 2792	40		Ruulian		5	12 August 2021
	CSP Bypass - Dangling markup	1% 1716	45		CanardMandarin		1	27 October 2020
	CSP Bypass - JSONP	1% 1382	45		CanardMandarin		5	27 October 2020
	CSRF - token bypass	3% 7308	45		sambecks		8	18 February 2016
	XSS - Reflected	2% 6271	45		pickle		6	16 March 2018
	CSP Bypass - Dangling markup 2	1% 1404	50		CanardMandarin		1	27 October 2020
	CSP Bypass - Nonce	1% 960	50		Ruulian		4	8 April 2022
	CSS - Exfiltration	1% 622	50		Forgi , gwel		1	8 April 2022
	Javascript - Obfuscation 4	2% 6824	50		aaSSfxxx		5	18 July 2011
	Relative Path Overwrite	1% 146	50		Mizu		1	28 July 2023
	XSS - Stored 2	3% 9307	50		g0uZ		7	4 March 2012
	XSS DOM Based - Filters Bypass	1% 1454	50		Ruulian		7	12 August 2021
	Self XSS - DOM Secrets	1% 225	55		Mizu		3	28 July 2023
	CSPT - The Ruler	1% 18	60		Rolix , Mizu		0	27 September 2024
	DOM Clobbering	1% 360	60		Mizu		1	8 April 2022
	Javascript - Obfuscation 6	1% 103	60		n3rada		0	27 April 2023
	Self XSS - Race Condition	1% 81	60		Mizu		1	28 July 2023
	Browser - bfcache / disk cache	1% 54	65		Mizu		0	28 July 2023
	HTTP Response Splitting	1% 2403	70		Arod		3	7 November 2013
	Javascript - Obfuscation 5	1% 791	70		Hel0ck		3	4 February 2011
	XS Leaks	1% 184	75		Mizu		1	8 April 2022
	XSS - Stored - filter bypass	1% 1499	80		Arod , sambecks		8	2 January 2016
	XSS - DOM Based	1% 849	85		vic		6	24 December 2016
	Same Origin Method Execution	1% 34	90		Mizu		0	28 July 2023

Challenge Results

Pseudo	Challenge	Lang	Date
TidiX	Javascript - Obfuscation 2		25 January 2025 at 00:37
legeek	Javascript - Authentification 2		25 January 2025 at 00:37
spacesuit871	Javascript - Obfuscation 2		25 January 2025 at 00:31
TidiX	Javascript - Obfuscation 1		25 January 2025 at 00:26
legeek	Javascript - Source		25 January 2025 at 00:23
spacesuit871	Javascript - Obfuscation 1		25 January 2025 at 00:22
legeek	Javascript - Authentification		25 January 2025 at 00:21
TidiX	Javascript - Authentification 2		25 January 2025 at 00:18
Neyzz	Javascript - Obfuscation 3		25 January 2025 at 00:17
legeek	HTML - boutons désactivés		25 January 2025 at 00:14