### [CVE-2017-7830](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7830)
![](https://img.shields.io/static/v1?label=Product&message=Firefox%20ESR&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=Firefox&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=Thunderbird&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=%3C%2052.5%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Version&message=%3C%2057%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Cross-origin%20URL%20information%20leak%20through%20Resource%20Timing%20API&color=brighgreen)

### Description

The Resource Timing API incorrectly revealed navigations in cross-origin iframes. This is a same-origin policy violation and could allow for data theft of URLs loaded by users. This vulnerability affects Firefox < 57, Firefox ESR < 52.5, and Thunderbird < 52.5.

### POC

#### Reference
- https://bugzilla.mozilla.org/show_bug.cgi?id=1408990

#### Github
No PoCs found on GitHub currently.