cve/2019/CVE-2019-11742.md

### [CVE-2019-11742](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11742)
![](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%2060.9%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Version&message=%3C%2068.1%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Version&message=%3C%2069%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Same-origin%20policy%20violation%20with%20SVG%20filters%20and%20canvas%20to%20steal%20cross-origin%20images&color=brighgreen)

### Description

A same-origin policy violation occurs allowing the theft of cross-origin images through a combination of SVG filters and a &lt;canvas&gt; element due to an error in how same-origin policy is applied to cached image content. The resulting same-origin policy violation could allow for data theft. This vulnerability affects Firefox < 69, Thunderbird < 68.1, Thunderbird < 60.9, Firefox ESR < 60.9, and Firefox ESR < 68.1.

### POC

#### Reference
- https://bugzilla.mozilla.org/show_bug.cgi?id=1559715
- https://bugzilla.mozilla.org/show_bug.cgi?id=1559715
- https://www.mozilla.org/security/advisories/mfsa2019-29/
- https://www.mozilla.org/security/advisories/mfsa2019-29/

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