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Validate action parameter

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Make sure the action request parameter only consists of a-z, A-Z, 0-9, _ or -
to discourage tampering with the following require_once.

darcs-hash:20080704194114-2b4f5-2bec30d7d40d7c7bd2c747ef3c805dbf720f6159.gz
This commit is contained in:
Gina Haeussge 2008-07-04 15:41:14 -04:00
parent 017bbd3b0f
commit e3e047b24a
1 changed files with 1 additions and 1 deletions
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index.php
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@ -24,7 +24,7 @@ require_once(INSTALLDIR . "/lib/common.php");
$action = $_REQUEST['action'];
if (!$action) {
if (!$action || !preg_match('/^[a-zA-Z0-9_-]*$/', $action)) {
common_redirect(common_local_url('public'));
}