Can other datatypes than Strings be potentially harmful if obtained from external sources?
It's a well known truth, that you don't can trust user inputs. These inputs can be even an security-problem, if they are used unfiltered. XSS and SQL-injections are possible problems coming from using unfiltered user-input (or input, that can be changed by the user).

To avoid such problems, you have to control all strings, that can be influenced by external resources. Perl supports this with it's 'Taint-mode'.

The problems I know about, all are arising from manipulated Strings. Are you know examples of security-problems coming from ints, floats etc. manipulated by external influences? Or can this datatypes assumed to be safe?
Can other datatypes than Strings be potentially harmful if obtained from external sources?
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It's a well known truth, that you don't can trust user inputs. These inputs can be even an security-problem, if they are used unfiltered. XSS and SQL-injections are possible problems coming from using unfiltered user-input (or input, that can be changed by the user).

To avoid such problems, you have to control all strings, that can be influenced by external resources. Perl supports this with it's 'Taint-mode'.

The problems I know about, all are arising from manipulated Strings. Are you know examples of security-problems coming from ints, floats etc. manipulated by external influences? Or can this datatypes assumed to be safe?