Cross-Site Scripting Vulnerability in Advanced Guestbook

vendor:

Advanced Guestbook

by:

Unknown

7.5

CVSS

HIGH

Cross-Site Scripting

CWE

Product Name: Advanced Guestbook

Affected Version From: 2.3.2001

Affected Version To: Unknown

Patch Exists: NO

Related CWE:

CPE: a:advanced_guestbook:advanced_guestbook:2.3.1

Metasploit:

Other Scripts:

Platforms Tested:

Unknown

Cross-Site Scripting Vulnerability in Advanced Guestbook

A cross-site scripting vulnerability exists in Advanced Guestbook due to a failure in properly sanitizing user-supplied URI input. An attacker can create a malicious URI link containing hostile HTML and script code. When a victim user follows the link, the code will be executed in their web browser, potentially allowing for theft of authentication credentials or other attacks.

Mitigation:

To mitigate this vulnerability, it is recommended to sanitize and validate all user-supplied input, especially when it is used to construct URLs or HTML content. Additionally, implementing a Content Security Policy (CSP) can help prevent cross-site scripting attacks.

Source

Exploit-DB raw data:

source: https://www.securityfocus.com/bid/11798/info

It is reported that Advanced Guestbook is affected by a cross-site scripting vulnerability. This issue is due to a failure of the application to properly sanitize user-supplied URI input.

This issue could permit a remote attacker to create a malicious URI link that includes hostile HTML and script code. If this link were to be followed, the hostile code may be rendered in the web browser of the victim user. This would occur in the security context of the affected web site and may allow for theft of cookie-based authentication credentials or other attacks.

This vulnerability is reported to exist in version 2.3.1 of Advanced Guestbook. Other versions may also be affected.

http://www.example.com/index.php?entry=<script>alert(document.cookie)</script>