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
	Javascript - Native code	25% 84364	15		g0uZ		8	13 March 2011
	Javascript - Source	44% 150430	5		g0uZ		5	7 October 2006
	XSS - Stored 1	12% 39209	30		g0uZ		10	3 March 2012
	XSS - Stored 2	3% 9057	50		g0uZ		7	4 March 2012
	Javascript - Authentication	47% 158868	5		g0uZ		9	8 October 2006
	Javascript - Obfuscation 1	39% 131393	10		Hel0ck		10	7 October 2006
	Javascript - Obfuscation 2	34% 113574	10		Hel0ck		8	3 February 2011
	Javascript - Obfuscation 3	19% 62272	30		Hel0ck		10	4 February 2011
	Javascript - Obfuscation 5	1% 785	70		Hel0ck		3	4 February 2011
	Javascript - Authentication 2	41% 138567	10		na5sim		4	3 February 2011
	HTTP Response Splitting	1% 2366	70		Arod		3	7 November 2013
	Javascript - Obfuscation 4	2% 6690	50		aaSSfxxx		5	18 July 2011
	Flash - Authentication	2% 6284	40		koma		1	18 June 2012
	CSRF - token bypass	3% 7150	45		sambecks		8	18 February 2016
	CSRF - 0 protection	6% 20102	35		sambecks		8	16 February 2016
	XSS - DOM Based	1% 842	85		vic		6	24 December 2016
	HTML - disabled buttons	44% 149928	5		Final		10	16 July 2017
	XSS - Reflected	2% 6086	45		pickle		6	16 March 2018
	CSP Bypass - Dangling markup	1% 1655	45		CanardMandarin		1	27 October 2020
	CSP Bypass - JSONP	1% 1332	45		CanardMandarin		5	27 October 2020
	Javascript - Webpack	8% 25629	15		CanardMandarin		3	11 August 2020
	CSP Bypass - Dangling markup 2	1% 1348	50		CanardMandarin		1	27 October 2020
	CSP Bypass - Inline code	2% 5317	35		CanardMandarin		8	27 October 2020
	Web Socket - 0 protection	1% 864	35		Worty		1	22 October 2021
	Same Origin Method Execution	1% 31	90		Mizu		0	28 July 2023
	DOM Clobbering	1% 341	60		Mizu		1	8 April 2022
	XS Leaks	1% 180	75		Mizu		1	8 April 2022
	Relative Path Overwrite	1% 137	50		Mizu		1	28 July 2023
	Browser - bfcache / disk cache	1% 47	65		Mizu		0	28 July 2023
	Self XSS - Race Condition	1% 76	60		Mizu		1	28 July 2023
	Self XSS - DOM Secrets	1% 214	55		Mizu		3	28 July 2023
	XSS DOM Based - AngularJS	1% 2399	40		Ruulian		3	12 August 2021
	XSS DOM Based - Eval	1% 2655	40		Ruulian		5	12 August 2021
	CSP Bypass - Nonce 2	1% 439	35		Ruulian		1	27 June 2023
	CSP Bypass - Nonce	1% 881	50		Ruulian		4	8 April 2022
	XSS DOM Based - Introduction	2% 5573	35		Ruulian		4	12 August 2021
	XSS DOM Based - Filters Bypass	1% 1382	50		Ruulian		7	12 August 2021
	Javascript - Obfuscation 6	1% 99	60		n3rada		0	27 April 2023
	XSS - Stored - filter bypass	1% 1465	80		Arod , sambecks		8	2 January 2016
	CSS - Exfiltration	1% 593	50		Forgi , gwel		1	8 April 2022
	CSPT - The Ruler	1% 17	60		Rolix , Mizu		0	27 September 2024
	AST - Deobfuscation	1% 1326	35		mhoste , Lxt3h		2	27 June 2023

Challenge Results

Pseudo	Challenge	Lang	Date
6a6y d2m0n	HTML - disabled buttons		15 November 2024 at 08:04
6a6y d2m0n	Javascript - Authentication		15 November 2024 at 08:03
wolfnono	Javascript - Authentication 2		15 November 2024 at 08:03
h0ag	Javascript - Obfuscation 1		15 November 2024 at 08:01
lhj011126	Javascript - Authentication 2		15 November 2024 at 08:00
wolfnono	Javascript - Source		15 November 2024 at 07:59
h0ag	Javascript - Authentification 2		15 November 2024 at 07:59
h0ag	Javascript - Source		15 November 2024 at 07:58
wolfnono	Javascript - Authentication		15 November 2024 at 07:58
h0ag	Javascript - Authentification		15 November 2024 at 07:57