Secunia Research: 4images "show_form_header()" Cross-Site Scripting Vulnerability

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                     Secunia Research 29/10/2010

 - 4images "show_form_header()" Cross-Site Scripting Vulnerability -

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Table of Contents

Affected Software....................................................1
Severity.............................................................2
Vendor's Description of Software.....................................3
Description of Vulnerability.........................................4
Solution.............................................................5
Time Table...........................................................6
Credits..............................................................7
References...........................................................8
About Secunia........................................................9
Verification........................................................10

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1) Affected Software 

* 4images 1.7.8

NOTE: Other versions may also be affected.

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2) Severity 

Rating: Less critical
Impact: Cross-Site Scripting
Where:  Remote

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3) Vendor's Description of Software 

"4images is a powerful web-based image gallery management system."

Product Link:
http://www.4homepages.de/

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4) Description of Vulnerability

Secunia Research has discovered a vulnerability in 4images, which can 
be exploited by malicious people to conduct cross-site scripting 
attacks.

Input appended to an URL after e.g. admin/plugins/migrate_keywords.php
or admin/plugins/clear_cache.php is not properly sanitised in the
"show_form_header()" function in admin/admin_functions.php before 
being returned to the user. This can be exploited to execute arbitrary 
HTML and script code in a user's browser session in context of an 
affected site.

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5) Solution 

Edit the source code as per the vendor recommendations.

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6) Time Table 

08/10/2010 - Vendor notified.
09/10/2010 - Vendor response.
29/10/2010 - Public disclosure.

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7) Credits 

Discovered by Secunia Research.

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8) References

The Common Vulnerabilities and Exposures (CVE) project has not 
currently assigned a CVE identifier for the vulnerability.

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9) About Secunia

Secunia offers vulnerability management solutions to corporate
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10) Verification 

Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2010-125/

Complete list of vulnerability reports published by Secunia Research:
http://secunia.com/secunia_research/

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