Blunder

Verified writeups for the Blunder machine of Hack The Box

Blunder

$ tldr Bludit CMS bypass + .htaccess upload → sudo CVE-2019-14287

CVE / Bulletins: CVE-2019-14287 ↗

·	·
Operating system	Linux
Difficulty	Easy
Vector	Web
IP	10.10.10.191
Retirement date	2020-10-17
Skills	Bludit CMS Exploitation Bypassing IP Blocking (X-Forwarded-For Header) Directory Traversal Image File Upload (Playing with .htaccess) Abusing sudo privilege (CVE-2019-14287)

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
Directory / Path Traversal	PortSwigger	Open
File Upload Vulnerabilities	PortSwigger	Open

Related skills worth mastering

Local File Inclusion (LFI) · Remote Code Execution (RCE)

If you liked this machine, try

• Silo — Windows, Medium
• Nibbles — Linux, Easy
• TheNotebook — Linux, Medium
• Timing — Linux, Medium
• Arctic — Windows, Easy

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Last updated: 2026-06-07