CVE-2020-6813
Medium
Description
When protecting CSS blocks with the nonce feature of Content Security Policy, the @import statement in the CSS block could allow an attacker to inject arbitrary styles, bypassing the intent of the Content Security Policy. This vulnerability affects Firefox < 74.
SeverityMedium
CVSS5.3
Exploit probability—
Product
Mozilla Firefox
PublishedMar 25, 2020
First seenMar 25, 2020
How to fix
Update
- mozilla firefox74.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mozilla firefox | v < 74.0 | 74.0 |
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