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More explicitly exclude a series of double dots

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This commit is contained in:
Kijin Sung 2016-03-15 18:05:48 +09:00
parent ff0df0a14b
commit b088348be2
1 changed files with 1 additions and 1 deletions
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2
common/framework/filters/filenamefilter.php
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@ -77,7 +77,7 @@ class FilenameFilter
$path = preg_replace('@/(\./)+@', '/', $path);
// Remove double dots and the preceding directory.
while (preg_match('@/[^/]+/\.\.(?:/|$)@', $path, $matches))
while (preg_match('@/(?!\.\.)[^/]+/\.\.(?:/|$)@', $path, $matches))
{
$path = str_replace($matches[0], '/', $path);
}