A vulnerability has been identified in Horde Application Framework, which could be exploited by attackers to inject malicious HTML code. This flaw is due to input validation errors in the CSS and GZIP/TAR MIME viewers ("Viewer/tgz.php" and "Viewer/css.php") that automatically unpack and display HTML pages contained in gzip attachments without prompting the user, which may be exploited by attackers to cause arbitrary scripting code to be executed by the user's browser in the security context of an affected Web site.
Credits
Vulnerability reported by Daniel Schreckling
ChangeLog
2005-11-22 : Initial release
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