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Security Fix for Cross-site Scripting (XSS) - huntr.dev #31

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Security Fix for Cross-site Scripting (XSS) - huntr.dev #31

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562aa49
Clean text to avoid XSS when katexfails to render
alromh87 Aug 21, 2020
405b599
Merge pull request #1 from alromh87/master
JamieSlome Aug 25, 2020
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9 changes: 7 additions & 2 deletions index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -152,6 +152,11 @@ function math_block(state, start, end, silent){
return true;
}

function cleanString(html){
html = html.replace(/[^\w\s]/gi, '')
return html;
}

module.exports = function math_plugin(md, options) {
// Default options

Expand All @@ -165,7 +170,7 @@ module.exports = function math_plugin(md, options) {
}
catch(error){
if(options.throwOnError){ console.log(error); }
return latex;
return cleanString(latex);
}
};

Expand All @@ -180,7 +185,7 @@ module.exports = function math_plugin(md, options) {
}
catch(error){
if(options.throwOnError){ console.log(error); }
return latex;
return cleanString(latex);
}
}

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