Gnuboard 'download.php' HTML Injection Vulnerability

BID:52622

Info

Gnuboard 'download.php' HTML Injection Vulnerability

Bugtraq ID: 52622
Class: Input Validation Error
CVE: CVE-2012-4873
Remote: Yes
Local: No
Published: Mar 20 2012 12:00AM
Updated: Mar 19 2015 07:35AM
Credit: wh1ant
Vulnerable: SIR GNUBoard 4.34.20
Not Vulnerable: SIR GNUBoard 4.34.21

Discussion

Gnuboard 'download.php' HTML Injection Vulnerability

Gnuboard is prone to an HTML-injection vulnerability because it fails to properly sanitize user-supplied input before using it in dynamically generated content.

Attacker-supplied HTML and script code would run in the context of the affected website, potentially allowing the attacker to steal cookie-based authentication credentials or control how the site is rendered to the user.

Gnuboard versions prior to 4.34.21 are vulnerable.

Exploit / POC

Gnuboard 'download.php' HTML Injection Vulnerability

An attacker can exploit this issue through a browser.

The following exploit example is available:

Solution / Fix

Gnuboard 'download.php' HTML Injection Vulnerability

Solution:
Vendor patch is available. Please see the references for more information.

References

Gnuboard 'download.php' HTML Injection Vulnerability

References:
© CVE.report 2026 |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report