xoron has reported a vulnerability in the event module for Limbo CMS, which can be exploited by malicious people to compromise vulnerable systems.

Input passed to the "lm_absolute_path" parameter in eventcal/mod_eventcal.php is not properly verified before being used to include files. This can be exploited to include arbitrary files from local or external resources.

Successful exploitation requires that "register_globals" is enabled.

The vulnerability is reported in version 1.0. Other versions may also be affected.

Solution
Edit the source code to ensure that input is properly verified.

Provided and/or discovered by
xoron

Changelog
Further details available to Secunia VIM customers

Original Advisory
http://www.milw0rm.com/exploits/3028

Deep Links
Links available to Secunia VIM customers