MyBB IP History Logs 1.0.2 Cross Site Scripting

2019.01.30
Credit: 0xB9
Risk: Low
Local: No
Remote: Yes
CWE: CWE-79


CVSS Base Score: 4.3/10
Impact Subscore: 2.9/10
Exploitability Subscore: 8.6/10
Exploit range: Remote
Attack complexity: Medium
Authentication: No required
Confidentiality impact: None
Integrity impact: Partial
Availability impact: None

# Exploit Title: MyBB IP History Logs Plugin 1.0.2 - Cross-Site Scripting # Date: 1/25/2018 # Author: 0xB9 # Twitter: @0xB9Sec # Contact: 0xB9[at]pm.me # Software Link: https://community.mybb.com/mods.php?action=view&pid=1213 # Version: 1.0.2 # Tested on: Ubuntu 18.04 # CVE: CVE-2019-6979 1. Description: This plugin keeps a record of a users IP & User-Agent history. The User-Agent isn't sanitized to user input allowing for an XSS via ACP. 2. Proof of Concept: - Change your User-Agent to a payload <script>alert('XSS')</script> - Log into an account When admin visits the IP/User-Agent history page the payload will execute http://localhost/[path]/admin/index.php?module=tools-ip_history_logs 3. Solution: Update to 1.0.3


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