Where? Here: http://urlquery.net/report.php?id=1475771966779
Certainly has security issues: https://observatory.mozilla.org/analyze.html?host=univ.szczecin.pl
Certificate error and vulnerability: -univ.szczecin.pl
Please contact the Certificate Authority for further verification.
You have 1 error
Wrong certificate installed.
The domain name does not match the certificate common name or SAN.
Warnings
Root installed on the server.
For best practices, remove the self-signed root from the server.
TLS1.2
This server is vulnerable to a TLS renegotiation attack.
Unbelievable for an IT institute, als DROWn vulnerable nameserver: https://test.drownattack.com/?site=ns1.univ.szczecin.pl
Retirable code: -http://univ.szczecin.pl
Detected libraries:
jquery - 1.7.1 : (active1) -https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js
Info: Severity: medium
http://bugs.jquery.com/ticket/11290
http://research.insecurelabs.org/jquery/test/
Info: Severity: medium
https://github.com/jquery/jquery/issues/2432
http://blog.jquery.com/2016/01/08/jquery-2-2-and-1-12-released/
jquery-ui-dialog - 1.8.24 : (active1) -http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/jquery-ui.min.js
Info: Severity: medium
http://bugs.jqueryui.com/ticket/6016
jquery-ui-autocomplete - 1.8.24 : -http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/jquery-ui.min.js
(active) - the library was also found to be active by running code
2 vulnerable libraries detected
polonus (volunteer website security analyst and website error-hunter)