developit / developit/vhtml

Possible injection because of sanitize cache

Open
#34 4 comments 8 reactions 0 assignees View on GitHub
Dominant language
JavaScript
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Description

Basically it's possible to inject dirty html:
```js
const striked = 'test';

console.log(

{striked}
);
console.log(
test
);
console.log(
{striked}
);
```

This is the output:
```html

<strike>test</strike>

test

test

```

Expected output:
```html

<strike>test</strike>

test

<strike>test</strike>

```

After rendering `

test
`, it caches `test` and doesn't sanitize it anymore. It can be seen live [here](https://codepen.io/remziatay/pen/YzroqLm?editors=1010) as well. Just because something was rendered before, it shouldn't mean that it's sanitized.

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