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When logged into the front end with Author access, it was possible to replace an article written by another user.
All 1.5.x installs prior to and including 1.5.14 are affected.
Upgrade to latest Joomla! version (1.5.15 or newer).
Reported by Hannes Papenberg
The JSST at the Joomla! Security Center.
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.
UPDATE 03.02.2009 - 21:17 Uhr:
Eine geringe und eine mittlere Sicherheitslücke wurden in dieser Version geschlossen:
Zusätzliche Informationen erhalten Sie im Joomla Security Center (englisch)
.