[原文]PHP remote file include vulnerability in common.php in txtForum 1.0.4-dev and earlier allows remote attackers to include and execute arbitrary PHP code via a URL in the skin parameter to login.php, and possibly other parameters to other PHP scripts, related to include statements in common.php.
txtForum contains a flaw that may allow a remote attacker to execute arbitrary commands. The issue is due to login.php script not properly sanitizing user input supplied to the 'skin' variable. This may allow an attacker to include a file from a remote host that contains arbitrary commands which will be executed by the vulnerable script.
This issue stems from an include statement made in the common.php script and may allow additional vectors for exploitation.
Currently, there are no known upgrades, patches, or workarounds available to correct this issue.