compose.php in SquirrelMail 1.4.22 calls unserialize for the $mailtodata value, which originates from an HTTP GET request. This is related to mailto.php.
The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
Link | Tags |
---|---|
https://www.openwall.com/lists/oss-security/2020/06/20/1 | third party advisory mailing list |