How to resolve vulnerable issues in regular expression

Asked Aug 10 '20 at 05:00

Active Aug 10 '20 at 05:21

Viewed 42 times

I am getting like this error in my application:

The application uses a dangerous regex pattern "/(?:\[rn]|[\r\n]+)+/g", at line 02 line number javascript code.

So How to resolve this vulnerable issue in regular expression? Any alternate method is there?

  var longline = "dddgjjb gah hjjjj \ fghjj hjjjjj"+"Dffjjhk";  
  var test=longline.replace(/(?:\\[rn]|[\r\n]+)+/g, "<br />").replace(/(?:\\+)+/g,"");        // 02 line number 
  console.log(test);

Demo: https://stackblitz.com/edit/js-qdqjz3

edited Aug 10 '20 at 05:21

asked Aug 10 '20 at 05:00

Makizh

It would greatly help your question to add a description about what the regex is supposed to be doing. – Tim Biegeleisen Aug 10 '20 at 05:07
Try this snippet `var test=longline.replace(/(?:\\[rn]|[\r\n]+)+/g,'');` - The problem is due to putting regex inside double quotes. – Nareen Babu Aug 10 '20 at 05:09
@user2932057: Not working..again i am getting same issue – Makizh Aug 10 '20 at 05:22

How to resolve vulnerable issues in regular expression

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