Silitix has discovered a vulnerability and a weakness in Fabien Gauharou Explorer XP, which can be exploited by malicious people to disclose system information and conduct cross-site scripting attacks.

1) Input passed to the "chemin" parameter in "dir.php" isn't properly sanitised 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.

2) Input passed to the "chemin" parameter in "dir.php" isn't properly verified, before it is used to list files and directories. This can be exploited to disclose the content of arbitrary directories via directory traversal attacks.

The vulnerability and the weakness have been confirmed in the latest available version. Other versions may also be affected.

Solution
Edit the source code to ensure that input is properly sanitised and verified.

Provided and/or discovered by
Silitix

Changelog
Further details available to Secunia VIM customers

Original Advisory
https://www.securinfos.info/english/security-advisories-alerts/20060329_.ExplorerXP_Directory.Traversal.and.Cross.Site.Scripting.php

Deep Links
Links available to Secunia VIM customers