Holiday

Verified writeups for the Holiday machine of Hack The Box

Holiday

$ tldr SQLite SQLi → XSS fromCharCode → npm privesc

·	·
Operating system	Linux
Difficulty	Hard
Vector	Web
IP	10.10.10.25
Retirement date	2019-09-11
Skills	SQL Injection - Sqlite XSS Injection - Bypassing Techniques (fromCharCode) + Own Javascript Code + Session Cookie Theft Abusing existing parameters - RCE NodeJS npm - Privilege Escalation

Writeups

Language	Author	Format	Link
🇪🇸 ES	S4vitar	Vídeo	Open
🇬🇧 EN	0xdf	Texto	Open
🇬🇧 EN	IppSec	Vídeo	Open

Skill resources

Curated documentation for each technique listed in the Skills column above. Sources: HackTricks, GTFOBins, PortSwigger, etc.

Skill	Source	Link
SQL Injection	HackTricks	Open
SQL Injection	PortSwigger	Open
Remote Code Execution (RCE)	HackTricks	Open
Cross-Site Scripting (XSS)	HackTricks	Open
Cross-Site Scripting (XSS)	PortSwigger	Open

Related skills worth mastering

Local File Inclusion (LFI) · Remote File Inclusion (RFI) · Shellshock (CVE-2014-6271) · Server-Side Request Forgery

If you liked this machine, try

• Europa — Linux, Medium
• Bastard — Windows, Medium
• Nightmare — Linux, Insane
• Bankrobber — Windows, Insane
• Flujab — Linux, Hard

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Comments & tips

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Last updated: 2026-06-07