Activity Stream can display content from sent from the Snippet Service website. This content is written to innerHTML on the Activity Stream page without sanitization, allowing for a potential access to other information available to the Activity Stream, such as browsing history, if the Snipper Service were compromised. This vulnerability affects Firefox < 68.
| Software | From | Fixed in |
|---|---|---|
| mozilla / firefox | - | 68.0 |
| opensuse / leap | 15.0 | 15.0.x |
| opensuse / leap | 15.1 | 15.1.x |