XSS - Server Side

20 Points

Who said XSS was only for the client side?

Author

Elf, 23 June 2023

Level

Validations

2891 Challengers 1%

Note

176 Votes

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4 Solutions

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Challenge Results

Pseudo	Challenge	Lang	Date
Niklaus	XSS - Server Side		5 April 2025 at 11:43
Ted	XSS - Server Side		5 April 2025 at 07:56
Faker1	XSS - Server Side		5 April 2025 at 00:38
WarioTakio	XSS - Server Side		4 April 2025 at 22:43
Saad Bukhari	XSS - Server Side		4 April 2025 at 20:48
KangTheConq	XSS - Server Side		4 April 2025 at 16:17
DarkCrow	XSS - Server Side		4 April 2025 at 15:04
Johan	XSS - Server Side		4 April 2025 at 14:42
kik	XSS - Server Side		4 April 2025 at 14:37
Grumpy	XSS - Server Side		4 April 2025 at 14:18

96 Challenges

Results	Name	Validations	Number of points	Difficulty	Author	Note	Solution ↓↑	Date
	SQL injection - Authentication	14% 46719	30		g0uZ		11	27 February 2011
	PHP - Eval	2% 3703	40		chmod		10	8 November 2018
	HTTP - Improper redirect	12% 43007	15		Arod		10	26 November 2014
	File upload - MIME type	8% 28389	20		g0uZ		10	26 December 2012
	File upload - Double extensions	10% 35321	20		g0uZ		10	24 December 2012
	PHP - assert()	5% 15654	25		Birdy42		10	26 November 2016
	HTTP - Verb tampering	14% 46785	15		g0uZ		10	3 February 2011
	HTTP - POST	14% 50124	15		Th1b4ud		10	14 August 2018
	SQL injection - String	7% 22210	30		g0uZ		10	24 December 2012
	Backup file	16% 54706	15		g0uZ		10	27 February 2011
	PHP - Command injection	19% 67467	10		sambecks		10	20 September 2017
	HTTP - User-agent	24% 84950	10		g0uZ		10	3 October 2006
	HTTP - Open redirect	19% 67621	10		Swissky		10	2 August 2017
	HTTP - Headers	16% 55191	15		Arod		9	11 January 2015
	LDAP injection - Authentication	3% 10503	35		g0uZ		8	26 May 2013
	NoSQL injection - Authentication	3% 7811	35		mastho		8	31 May 2015
	Remote File Inclusion	4% 11963	30		g0uZ		8	25 November 2015
	HTTP - Cookies	13% 46141	20		g0uZ		8	7 October 2006
	Node - Eval	1% 3028	30		Mhd_Root		7	24 February 2021
	Python - Server-side Template Injection Introduction	2% 4705	25		Podalirius		7	7 September 2021
	SQL injection - Numeric	5% 15318	35		g0uZ		7	24 December 2012
	SQL injection - Filter bypass	1% 2999	80		sambecks		7	21 July 2014
	HTTP - IP restriction bypass	9% 30019	10		Cyrhades		7	23 March 2021
	Server Side Request Forgery	1% 1949	50		sambecks		7	22 June 2018
	Weak password	31% 111164	10		g0uZ		7	3 October 2006
	HTTP - Directory indexing	22% 78171	15		g0uZ		7	7 October 2006
	CRLF	9% 32056	20		g0uZ		7	31 July 2011
	Java - Server-side Template Injection	4% 10818	30		righettod		6	29 November 2015
	Command injection - Filter bypass	3% 7779	30		sambecks		6	20 September 2017
	Install files	13% 44213	15		g0uZ		6	7 October 2006
	Insecure Code Management	4% 14015	20		Swissky		6	29 September 2019
	SQL injection - Blind	3% 7827	50		g0uZ		6	27 February 2011
	PHP - Path Truncation	2% 5509	35		Geluchat		6	25 March 2015
	JWT - Weak secret	4% 12227	25		Jrmbt		6	21 August 2019
	JWT - Revoked token	2% 6280	25		ArnC		6	20 March 2020
	XPath injection - Authentication	2% 6707	35		g0uZ		6	27 December 2012
	NoSQL injection - Blind	1% 3091	45		ghozt		6	26 November 2016
	Python - Blind SSTI Filters Bypass	1% 691	75		Podalirius		5	7 September 2021
	JWT - Unsecure Key Handling	1% 835	35		Nishacid , Mika		5	23 February 2023
	XSLT - Code execution	2% 3789	30		ghozt		5	16 July 2017
	SQL Injection - Routed	2% 5512	35		soka		5	24 December 2016
	XPath injection - Blind	1% 2399	75		g0uZ		5	27 December 2012
	SQL injection - Error	3% 8034	40		sambecks		5	4 March 2015
	XPath injection - String	2% 3992	40		g0uZ		5	26 May 2013
	HTML - Source code	48% 171729	5		g0uZ		5	3 October 2006
	JWT - Public key	2% 3969	30		Jrmbt		5	21 August 2019
	JWT - Introduction	5% 17634	20		Kn0wledge		5	21 August 2019
	Local File Inclusion - Double encoding	4% 13030	30		zM_		4	13 June 2016
	PHP - Remote Xdebug	1% 1524	25		mayfly		4	18 March 2020
	SQL injection - Time based	2% 5903	45		ycam		4	11 September 2015
	GraphQL - Introspection	2% 3902	20		apges01		4	19 January 2023
	SQL injection - Insert	1% 3240	40		sambecks		4	23 February 2015
	XSS - Server Side	1% 2891	20		Elf		4	23 June 2023
	Local File Inclusion - Wrappers	2% 3731	40		sambecks		4	2 March 2016
	File upload - Null byte	7% 24217	25		g0uZ		4	26 December 2012
	PHP - Apache configuration	1% 2526	25		erk3 , nemoz		4	8 July 2022
	PHP - Loose Comparison	3% 7392	30		ghozt		4	10 January 2018
	PHP - type juggling	3% 8990	30		vic		4	10 March 2016
	SQL injection - Authentication - GBK	3% 9997	30		dvor4x		4	2 December 2015
	PHP - preg_replace()	3% 9154	30		sambecks		4	2 March 2016
	Local File Inclusion	8% 25867	30		g0uZ		4	2 October 2011
	File upload - ZIP	3% 9751	30		ghozt		3	3 August 2017
	Directory traversal	10% 35723	25		g0uZ		3	31 July 2011
	SQL injection - File reading	2% 6041	40		Arod		3	19 October 2014
	PHP - Filters	6% 19917	25		g0uZ		3	27 February 2011
	PHP - Serialization	2% 6818	35		Arod		3	3 February 2014
	Java - Spring Boot	1% 2379	40		dvor4x		3	24 December 2016
	API - Broken Access	2% 4983	15		Nishacid , Mika		3	18 January 2024
	JWT - Unsecure File Signature	1% 2360	25		Nishacid , Mika		3	23 February 2023
	XML External Entity	2% 5735	35		sambecks		2	20 October 2014
	Node - Serialize	1% 1324	35		Mhd_Root		2	24 February 2021
	LDAP injection - Blind	1% 3515	55		g0uZ		2	8 June 2013
	PHP - Unserialize overflow	1% 797	55		mayfly		2	4 April 2020
	PHP - Unserialize Pop Chain	1% 727	55		Worty		2	22 October 2021
	JWT - Header Injection	1% 1277	30		Nishacid , Mika		2	23 February 2023
	PHP - Eval - Advanced filters bypass	1% 631	40		Podalirius		2	8 July 2022
	PHP - register globals	5% 16034	25		g0uZ		2	8 October 2011
	Yaml - Deserialization	1% 1453	35		Nishacid		2	20 April 2021
	GraphQL - Injection	1% 828	30		apges01		2	19 January 2023
	SQL Truncation	2% 6874	35		Geluchat		2	1 May 2015
	GraphQL - Mutation	1% 1604	40		CanardMandarin		2	20 October 2020
	API - Mass Assignment	1% 3116	20		Nishacid , Mika		2	18 January 2024
	Nginx - Alias Misconfiguration	1% 2487	15		.Yo0x		2	27 September 2024
	SQL Injection - Second Order	1% 233	55		k4ndar3c		1	29 November 2023
	Elixir - EEx	1% 295	35		lolo42		1	29 November 2023
	NodeJS - vm escape	1% 779	50		Podalirius		1	15 April 2021
	Flask - Unsecure session	1% 2823	20		Sanlokii		1	29 November 2023
	NodeJS - Prototype Pollution Bypass	1% 562	45		Worty		1	22 October 2021
	File upload - Polyglot	1% 480	45		Cyxo		1	8 July 2022
	API - Broken Access 2	1% 532	40		Nishacid , Mika		1	18 January 2024
	Flask - Development server	1% 1035	30		Sanlokii		1	29 November 2023
	GraphQL - Backend injection	1% 459	40		apges01		1	19 January 2023
	Java - Custom gadget deserialization	1% 196	50		Elweth		0	28 December 2023
	Nginx - Root Location Misconfiguration	1% 467	15		.Yo0x		0	27 September 2024
	Nginx - SSRF Misconfiguration	1% 146	30		.Yo0x		0	27 September 2024
	Python - dotenv	1% 48	70		jrjgjk		0	27 September 2024