ReDoS-example

there is 6 vulnerabilities

1. ReDoS in index.vuln.js line 30

const regex1 = RegExp('(x+x+)+y','g');
const str1 = req.body.msg;

let matchedStrings = regex1.exec(str1);
res.end(matchedStrings)

2. ReDoS in index.vuln.js line 39

const regex1 = RegExp(req.body.word,'g');
const str1 = 'table football, foosball';

let matchedStrings = regex1.exec(str1);
res.end(matchedStrings)

3. ReDoS in index.vuln.js line 48

const regex1 = RegExp('(x+x+)+y','g');
const str1 = 'table football, foosball';

let matchedStrings = regex1.exec(str1);
res.end(matchedStrings)

4. ReDoS in index.vuln.ts line 29

const regex1 = RegExp('(x+x+)+y','g');
const str1 = req.body.msg;

let matchedStrings = regex1.exec(str1);
res.end(matchedStrings)

5. ReDoS in index.vuln.ts line 38

const regex1 = RegExp(req.body.word,'g');
const str1 = 'table football, foosball';

let matchedStrings = regex1.exec(str1);
res.end(matchedStrings)

6. ReDoS in index.vuln.ts line 47

const regex1 = RegExp('(x+x+)+y','g');
const str1 = 'table football, foosball';

let matchedStrings = regex1.exec(str1);
res.end(matchedStrings)