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
Original Advisory: https://www.securinfos.info/english/security-advisories-alerts/20060329_.ExplorerXP_Directory.Traversal.and.Cross.Site.Scripting.php
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Subject: Explorer XP "chemin" Cross-Site Scripting and Directory Traversal
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