MyBB HTML-injection Vulnerability

vendor:

MyBB

by:

SecurityFocus

7.5

CVSS

HIGH

HTML-injection

CWE

Product Name: MyBB

Affected Version From: N/A

Affected Version To: N/A

Patch Exists: N/A

Related CWE: N/A

CPE: N/A

Metasploit: N/A

Other Scripts: N/A

Tags: N/A

CVSS Metrics: N/A

Nuclei References: N/A

Nuclei Metadata: N/A

Platforms Tested: N/A

2005

MyBB HTML-injection Vulnerability

MyBB is prone to an HTML-injection vulnerability due to a lack of proper sanitization of user-supplied input before using it in dynamically generated content. Attacker-supplied HTML and script code would be executed in the context of the affected website, potentially allowing for theft of cookie-based authentication credentials. An attacker could also exploit this issue to control how the site is rendered to the user; other attacks are also possible.

Mitigation:

Input validation should be used to ensure that user-supplied data does not contain malicious HTML or script code.

Source

Exploit-DB raw data:

source: https://www.securityfocus.com/bid/16361/info

MyBB is prone to an HTML-injection vulnerability. This issue is due to a lack of proper sanitization of user-supplied input before using it in dynamically generated content.

Attacker-supplied HTML and script code would be executed in the context of the affected website, potentially allowing for theft of cookie-based authentication credentials. An attacker could also exploit this issue to control how the site is rendered to the user; other attacks are also possible. 

The following proof of concept is available:

http://www.example.com/usercp.php?action=notepad

notepad=&lt;/textarea&gt;<script>alert(document.cookie)</script>