Daily Writeups
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Daily Bug Bounty / Cybersecurity Writeups
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Daily Writeups
⤷ Title: The Unseen Share: How I Downloaded Every File on 9 Tail Fox
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𐀪 Author: 0B1To_X_ucH!h4
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ⴵ Time: Fri, 17 Jul 2026 09:18:44 GMT
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⌗ Tags: #abc #file_sharing #idor #bug_bounty
Medium
The Unseen Share: How I Downloaded Every File on 9 Tail Fox
An IDOR vulnerability in shared links, a $700 bounty, and the invisible permission that wasn’t there
11 views
Daily Writeups
⤷ Title: File Upload Bypass Using a Pre-Signed S3 URL
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𐀪 Author: Mahmoud Elsaidy
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ⴵ Time: Fri, 17 Jul 2026 04:19:09 GMT
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⌗ Tags: #file_upload_vulnerability #amazon_s3 #bug_bounty_writeup
Medium
File Upload Bypass Using a Pre-Signed S3 URL
welcome to my first write-up. I started bug hunting about 3 months ago, and this was one of my first findings, so I would love to share it.
42 views
Daily Writeups
⤷ Title: HackTheBox Walkthrough — Nexus
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𐀪 Author: Indigo Shadow
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ⴵ Time: Sun, 19 Jul 2026 05:51:01 GMT
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⌗ Tags: #git_repo_escape #ethical_hacking #htb_walkthrough_nexus #file_upload_vulnerability #git_objects
Medium
HackTheBox Walkthrough — Nexus
#Linux #HTBWalkthrough #HTBNexus #FileUpload #Gitea #Gobuster #fuff #subdomainEnumeration #GitPathTraversal #GitObjects
40 views
Daily Writeups
⤷ Title: SolarWinds Patches Three Critical Serv-U Vulnerabilities Enabling RCE
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𐀪 Author: Do Son
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ⴵ Time: Tue, 21 Jul 2026 17:21:35 +0000
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⌗ Tags: #Vulnerability Report #broken access control #CVE_2026_28307 #CVE_2026_28308 #CVE_2026_28321 #File Transfer #IDOR #privilege escalation #rce #SolarWinds #SolarWinds Serv_U
Daily CyberSecurity
SolarWinds Patches Three Critical Serv-U Vulnerabilities Enabling RCE
TL;DR SolarWinds fixed three critical SolarWinds Serv-U vulnerabilities on July 21, 2026. They allow privilege escalation and remote code execution on the file transfer server. SolarWinds rates ea…
28 views
Daily Writeups
⤷ Title: SolarWinds Patches 15 Critical Serv-U Vulnerabilities Enabling Root Access
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𐀪 Author: Do Son
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ⴵ Time: Tue, 21 Jul 2026 17:21:35 +0000
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⌗ Tags: #Vulnerability Report #broken access control #CVE_2026_28307 #CVE_2026_28308 #CVE_2026_28321 #File Transfer #IDOR #privilege escalation #rce #SolarWinds #SolarWinds Serv_U
Daily CyberSecurity
SolarWinds Patches Three Critical Serv-U Vulnerabilities Enabling RCE
TL;DR SolarWinds fixed three critical SolarWinds Serv-U vulnerabilities on July 21, 2026. They allow privilege escalation and remote code execution on the file transfer server. SolarWinds rates ea…
20 views
Daily Writeups
⤷ Title: CTF: Expose TryhackMe Room
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𐀪 Author: Duong
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ⴵ Time: Wed, 22 Jul 2026 19:34:29 GMT
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⌗ Tags: #tryhackme #privilege_escalation #ctf #sqlmap #file_upload
Medium
CTF: Expose TryhackMe Room
Nmap, sqlmap, wordlists, PHP shell
16 views
Daily Writeups
⤷ Title: How I Found a Bug Worth $3,500 — In a Feature Nobody Was Watching.
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𐀪 Author: Vishw Bhatt
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ⴵ Time: Fri, 24 Jul 2026 15:52:09 GMT
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⌗ Tags: #admin_panel #file_upload #bug_bounty
Medium
How I Found a Bug Worth $3,500 — In a Feature Nobody Was Watching.
A storage-exhaustion flaw. A stored XSS that waited for an admin. Both hiding in the same “boring” file upload form that hadn’t been…
19 views
Daily Writeups
⤷ Title: Upload de arquivos não é apenas uma funcionalidade: é uma fronteira de segurança
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𐀪 Author: Cristiano Junior
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ⴵ Time: Sat, 25 Jul 2026 12:58:03 GMT
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⌗ Tags: #application_security #secure_coding #file_upload_security #cybersecurity #web_security
20 views
Daily Writeups
⤷ Title: Windows 11 File Explorer Now Deletes Large Fragmented Files Faster
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𐀪 Author: Do Son
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ⴵ Time: Mon, 27 Jul 2026 03:45:13 +0000
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⌗ Tags: #Windows #File Explorer #Microsoft #NTFS #Windows 11 #Windows Insider
Daily CyberSecurity
Windows 11 File Explorer Now Deletes Large Fragmented Files Faster
Microsoft recently pushed Windows 11 Build 26300.8935 to users in its preview program. The changelog highlights one useful gain. In certain scenarios, deleting large and heavily fragmented files n…
13 views
Daily Writeups
⤷ Title: How I Found a Bug Worth $3,500 — In a Feature Nobody Was Watching.
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𐀪 Author: Vishw Bhatt
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ⴵ Time: Mon, 27 Jul 2026 09:37:44 GMT
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⌗ Tags: #admin_panel #file_upload #bug_bounty
Medium
How I Found a Bug Worth $3,500 — In a Feature Nobody Was Watching.
A storage-exhaustion flaw. A stored XSS that waited for an admin. Both hiding in the same “boring” file upload form that hadn’t been…
21 views
Daily Writeups
⤷ Title: CVE-2026-63223: CodeIgniter4 RCE Vulnerability Rated CVSS 9.8
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𐀪 Author: Do Son
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ⴵ Time: Fri, 31 Jul 2026 09:19:03 +0000
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⌗ Tags: #Vulnerability Report #CodeIgniter4 #CVE_2026_63223 #File Upload Vulnerability #Path Traversal #PHP Framework #Remote Code Execution #sql injection #Web Security
Daily CyberSecurity
CVE-2026-63223: CodeIgniter4 RCE Vulnerability Rated CVSS 9.8
TL;DR: The CodeIgniter4 team patched four security flaws in release v4.7.4. The most severe, a CodeIgniter4 RCE vulnerability tracked as CVE-2026-63223, scores CVSS 9.8. It can lead to remote code…
25 views
Daily Writeups
⤷ Title: Microsoft Details Windows 11 Quality Push Ahead of 26H2 Rollout
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𐀪 Author: Do Son
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ⴵ Time: Sat, 01 Aug 2026 09:40:12 +0000
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⌗ Tags: #Windows #File Explorer #Microsoft #Windows 11 #Windows 11 26H2 #Windows Update
Daily CyberSecurity
Microsoft Details Windows 11 Quality Push Ahead of 26H2 Rollout
Back in March, Microsoft published a pledge to improve Windows 11 quality. The promise targeted reliability and performance problems that customers had complained about for years. Anyone following…
6 views
Daily Writeups
⤷ Title: File Upload Vulnerabilities: From HTML Injection to Remote Code Execution
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𐀪 Author: Viodex
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ⴵ Time: Sat, 01 Aug 2026 15:16:55 GMT
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⌗ Tags: #file_upload_vulnerability #hacking #penetration_testing #deep_dives #cybersecurity
Medium
File Upload Vulnerabilities: From HTML Injection to Remote Code Execution
For almost a decade, many people have misunderstood one common idea:
10 views
Daily Writeups
⤷ Title: File Upload Vulnerabilities: From HTML Injection to Remote Code Execution
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𐀪 Author: perdo
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ⴵ Time: Sat, 01 Aug 2026 17:51:43 GMT
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⌗ Tags: #educational #file_upload_vulnerability #cybersecurity #hacking #penetration_testing
Medium
File Upload Vulnerabilities: From HTML Injection to Remote Code Execution
File Upload Vulnerabilities — Read the Full Guide
13 views
Daily Writeups
⤷ Title: [RootMe] — PHP Upload Bypass to Root Access via SUID PrivEsc
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𐀪 Author: Bash Overflow
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ⴵ Time: Thu, 13 Aug 2026 07:43:04 GMT
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⌗ Tags: #tryhackme_rootme #file_upload_bypass #tryhackme #privilege_escalation #ctf
Medium
[RootMe] — PHP Upload Bypass to Root Access via SUID PrivEsc
From hidden upload panel to root through PHP execution and Linux SUID privilege escalation.
10 views
Daily Writeups
⤷ Title: Windows 11 Tests Customizable Right-Click Context Menu to Cut App Clutter
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𐀪 Author: Do Son
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ⴵ Time: Mon, 17 Aug 2026 03:01:50 +0000
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⌗ Tags: #Technology #App Extensions #Context Menu #File Explorer #Microsoft #Windows 11 #Windows Customization #Windows Insider
Daily CyberSecurity
Windows 11 Tests Customizable Right-Click Context Menu to Cut App Clutter
Microsoft is currently developing a customizable right-click context menu for Windows 11. Screenshots of the feature surfaced online, revealing that the new menu applies to both the desktop and Fi…
10 views
Daily Writeups
⤷ Title: File Upload Security: Polyglots, Content-Type Confusion, and Storage Risks
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𐀪 Author: CYBER MIND SPACE
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ⴵ Time: Wed, 19 Aug 2026 03:46:24 GMT
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⌗ Tags: #ethical_hacking #file_upload_security #cybersecurity #cybermindspace #php
Medium
File Upload Security: Polyglots, Content-Type Confusion, and Storage Risks
The file passed image validation. It was also PHP. That’s the whole attack.
30 views
Daily Writeups
⤷ Title: Microsoft Removes Windows 11 Drag Tray
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𐀪 Author: Do Son
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ⴵ Time: Wed, 19 Aug 2026 08:33:26 +0000
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⌗ Tags: #Windows #Beta Update #Drag Tray #File Explorer #Microsoft #Windows 11
Daily CyberSecurity
Microsoft Removes Windows 11 Drag Tray
Microsoft has officially removed the experimental Drag Tray feature from the latest Windows 11 beta release. The company initially introduced this tool in February 2025. However, after over a year…
9 views