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Php-nuke "phpbb_root_path" Arbitrary File

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Secunia writes:


Silentium has reported a vulnerability in PHP-Nuke, which can be exploited to compromise a vulnerable system.


Input passed to the "phpbb_root_path" parameter in "admin_styles.php" is not properly verified before being used to include files. This can be exploited to include arbitrary files from external and local resources.


It is also possible to disclose the installation path by supplying invalid input to the "phpEx" parameter in various scripts.


This vulnerability has been reported in version 7.5. Other versions may also be affected.



Restrict access to administrative scripts using htaccess or similar.


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

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Can someone assist me in how to patch this vulnerability? I must be missing something, cause I don't see the resolution.

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