CVE-2023-28115

Snappy is a PHP library allowing thumbnail, snapshot or PDF generation from
a url or a html page. Prior to version 1.4.2, Snappy is vulnerable to PHAR
deserialization due to a lack of checking on the protocol before passing it
into the file_exists() function. If an attacker can upload files of any
type to the server he can pass in the phar:// protocol to unserialize the
uploaded file and instantiate arbitrary PHP objects. This can lead to
remote code execution especially when snappy is used with frameworks with
documented POP chains like Laravel/Symfony vulnerable developer code. If a
user can control the output file from the generateFromHtml() function, it
will invoke deserialization. This vulnerability is capable of remote code
execution if Snappy is used with frameworks or developer code with
vulnerable POP chains. It has been fixed in version 1.4.2.