JWT - Header Injection

30 Points

Give him the right key

Author

Nishacid, Mika, 23 February 2023

Level

Validations

1434 Challengers 1%

Note

60 Votes

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2 Solutions

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Challenge Results

Pseudo	Challenge	Lang	Date
ahmedsarr	JWT - Header Injection		24 July 2025 at 21:03
Argon	JWT - Header Injection		23 July 2025 at 18:53
0xSpiizN	JWT - Header Injection		21 July 2025 at 22:49
wanveo	JWT - Header Injection		21 July 2025 at 13:21
Sramazoth	JWT - Header Injection		20 July 2025 at 14:37
lawlietadh	JWT - Header Injection		17 July 2025 at 17:51
Xurr1C4n3	JWT - Header Injection		17 July 2025 at 11:31
Snake_ify	JWT - Header Injection		16 July 2025 at 13:16
neilaos	JWT - Header Injection		14 July 2025 at 17:32
amr	JWT - Header Injection		14 July 2025 at 02:37

97 Challenges

Results	Name	Validations	Number of points	Difficulty	Author	Note	Solution	Date
	HTML - Source code	48% 175355	5		g0uZ		6	3 October 2006
	HTTP - IP restriction bypass	9% 31776	10		Cyrhades		8	23 March 2021
	HTTP - Open redirect	19% 69170	10		Swissky		10	2 August 2017
	HTTP - User-agent	24% 86837	10		g0uZ		10	3 October 2006
	Weak password	31% 113330	10		g0uZ		7	3 October 2006
	PHP - Command injection	19% 69290	10		sambecks		10	20 September 2017
	API - Broken Access	2% 6012	15		Nishacid , Mika		4	18 January 2024
	Backup file	16% 55765	15		g0uZ		10	27 February 2011
	HTTP - Directory indexing	22% 79649	15		g0uZ		7	7 October 2006
	HTTP - Headers	16% 56438	15		Arod		9	11 January 2015
	HTTP - POST	14% 51377	15		Th1b4ud		10	14 August 2018
	HTTP - Improper redirect	12% 43960	15		Arod		10	26 November 2014
	HTTP - Verb tampering	13% 47769	15		g0uZ		10	3 February 2011
	Install files	13% 45103	15		g0uZ		7	7 October 2006
	Nginx - Alias Misconfiguration	1% 3286	15		.Yo0x		3	27 September 2024
	Nginx - Root Location Misconfiguration	1% 1573	15		.Yo0x		1	27 September 2024
	API - Mass Assignment	1% 3667	20		Nishacid , Mika		2	18 January 2024
	CRLF	9% 32604	20		g0uZ		7	31 July 2011
	File upload - Double extensions	10% 36100	20		g0uZ		10	24 December 2012
	File upload - MIME type	8% 29117	20		g0uZ		10	26 December 2012
	Flask - Unsecure session	1% 3212	20		Sanlokii		1	29 November 2023
	GraphQL - Introspection	2% 4255	20		apges01		4	19 January 2023
	HTTP - Cookies	13% 47065	20		g0uZ		8	7 October 2006
	Insecure Code Management	4% 14421	20		Swissky		6	29 September 2019
	JWT - Introduction	5% 18318	20		Kn0wledge		5	21 August 2019
	XSS - Server Side	1% 3214	20		Elf		4	23 June 2023
	Directory traversal	10% 36501	25		g0uZ		3	31 July 2011
	File upload - Null byte	7% 24785	25		g0uZ		4	26 December 2012
	JWT - Revoked token	2% 6601	25		ArnC		6	20 March 2020
	JWT - Weak secret	4% 12738	25		Jrmbt		7	21 August 2019
	JWT - Unsecure File Signature	1% 2658	25		Nishacid , Mika		3	23 February 2023
	PHP - assert()	5% 16058	25		Birdy42		10	26 November 2016
	PHP - Apache configuration	1% 2748	25		erk3 , nemoz		4	8 July 2022
	PHP - Filters	6% 20344	25		g0uZ		3	27 February 2011
	PHP - register globals	5% 16366	25		g0uZ		2	8 October 2011
	PHP - Remote Xdebug	1% 1580	25		mayfly		4	18 March 2020
	Python - Server-side Template Injection Introduction	2% 5032	25		Podalirius		7	7 September 2021
	File upload - ZIP	3% 10055	30		ghozt		3	3 August 2017
	Flask - Development server	1% 1218	30		Sanlokii		1	29 November 2023
	GraphQL - Injection	1% 936	30		apges01		2	19 January 2023
	Command injection - Filter bypass	3% 7986	30		sambecks		6	20 September 2017
	Java - Server-side Template Injection	4% 11145	30		righettod		6	29 November 2015
	JWT - Public key	2% 4141	30		Jrmbt		5	21 August 2019
	JWT - Header Injection	1% 1432	30		Nishacid , Mika		2	23 February 2023
	Local File Inclusion	8% 26324	30		g0uZ		4	2 October 2011
	Local File Inclusion - Double encoding	4% 13312	30		zM_		4	13 June 2016
	Nginx - SSRF Misconfiguration	1% 375	30		.Yo0x		1	27 September 2024
	Node - Eval	1% 3149	30		Mhd_Root		7	24 February 2021
	PHP - Loose Comparison	3% 7562	30		ghozt		4	10 January 2018
	PHP - preg_replace()	3% 9369	30		sambecks		4	2 March 2016
	PHP - type juggling	3% 9153	30		vic		4	10 March 2016
	Remote File Inclusion	4% 12217	30		g0uZ		8	25 November 2015
	Ruby on Rails - ransack	1% 49	30		koma		0	23 June 2025
	SQL injection - Authentication	13% 47758	30		g0uZ		11	27 February 2011
	SQL injection - Authentication - GBK	3% 10269	30		dvor4x		4	2 December 2015
	SQL injection - String	7% 22727	30		g0uZ		10	24 December 2012
	XSLT - Code execution	2% 3884	30		ghozt		5	16 July 2017
	Elixir - EEx	1% 387	35		lolo42		1	29 November 2023
	JWT - Unsecure Key Handling	1% 948	35		Nishacid , Mika		5	23 February 2023
	LDAP injection - Authentication	3% 10726	35		g0uZ		8	26 May 2013
	Node - Serialize	1% 1406	35		Mhd_Root		2	24 February 2021
	NoSQL injection - Authentication	3% 8011	35		mastho		8	31 May 2015
	PHP - Path Truncation	2% 5614	35		Geluchat		6	25 March 2015
	PHP - Serialization	2% 6980	35		Arod		3	3 February 2014
	SQL injection - Numeric	5% 15752	35		g0uZ		7	24 December 2012
	SQL Injection - Routed	2% 5662	35		soka		5	24 December 2016
	SQL Truncation	2% 7048	35		Geluchat		2	1 May 2015
	XML External Entity	2% 5865	35		sambecks		2	20 October 2014
	XPath injection - Authentication	2% 6850	35		g0uZ		6	27 December 2012
	Yaml - Deserialization	1% 1545	35		Nishacid		2	20 April 2021
	API - Broken Access 2	1% 640	40		Nishacid , Mika		1	18 January 2024
	GraphQL - Backend injection	1% 507	40		apges01		1	19 January 2023
	GraphQL - Mutation	1% 1659	40		CanardMandarin		2	20 October 2020
	Java - Spring Boot	1% 2426	40		dvor4x		3	24 December 2016
	Local File Inclusion - Wrappers	2% 3827	40		sambecks		4	2 March 2016
	PHP - Eval	2% 3808	40		chmod		10	8 November 2018
	PHP - Eval - Advanced filters bypass	1% 674	40		Podalirius		2	8 July 2022
	SQL injection - Error	3% 8332	40		sambecks		5	4 March 2015
	SQL injection - Insert	1% 3318	40		sambecks		4	23 February 2015
	SQL injection - File reading	2% 6135	40		Arod		3	19 October 2014
	XPath injection - String	2% 4075	40		g0uZ		5	26 May 2013
	File upload - Polyglot	1% 530	45		Cyxo		1	8 July 2022
	NodeJS - Prototype Pollution Bypass	1% 603	45		Worty		1	22 October 2021
	NoSQL injection - Blind	1% 3180	45		ghozt		6	26 November 2016
	SQL injection - Time based	2% 6062	45		ycam		4	11 September 2015
	Java - Custom gadget deserialization	1% 246	50		Elweth		0	28 December 2023
	NodeJS - vm escape	1% 813	50		Podalirius		1	15 April 2021
	Server Side Request Forgery	1% 2004	50		sambecks		7	22 June 2018
	SQL injection - Blind	3% 8025	50		g0uZ		6	27 February 2011
	LDAP injection - Blind	1% 3586	55		g0uZ		2	8 June 2013
	PHP - Unserialize overflow	1% 819	55		mayfly		2	4 April 2020
	PHP - Unserialize Pop Chain	1% 778	55		Worty		2	22 October 2021
	SQL Injection - Second Order	1% 267	55		k4ndar3c		1	29 November 2023
	Python - dotenv	1% 125	70		jrjgjk		1	27 September 2024
	Python - Blind SSTI Filters Bypass	1% 728	75		Podalirius		5	7 September 2021
	XPath injection - Blind	1% 2472	75		g0uZ		5	27 December 2012
	SQL injection - Filter bypass	1% 3107	80		sambecks		7	21 July 2014