Eine neue Sicherheits-Version 2.0.1 des eXtplorer (ein auf PHP und Javascript basierender Filemanager, früher bekannt gewesen als JoomlaXplorer) ist freigegeben worden. Der eXplorer dient zur Verwaltung des Webverzeichnisses aus dem Joomla! Backend-Bereich heraus. Diese Komponente kann unter Joomla 1.5.x nativ als auch unter Joomla 1.0.x verwendet werden.It is possible to read the contents of an extension's XML file and find the version number of the installed extension. This could allow people to exploit a known security flaws for a specific version of an extension.
All 1.5.x installs prior to and including 1.5.14 are affected.
Turn on Apache mod_rewrite and configure your .htaccess file to filter out XML files. In the htaccess.txt file shipped with version 1.5.15, lines 35-39 contain example code that will deny access to XML files. You can incorporate this code (or similar code) into your .htaccess file. Be sure to test that it does not cause problems on your site.
Reported by WHK and Gergő Erdősi
The JSST at the Joomla! Security Center.