CVEvulnerability
CVE-2020-6813
5.3 MEDIUM
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- Status
- Modified
- Published
- 2020-03-25
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:P/A:N
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.
Affected configurations
• mozilla firefox (< 74.0)
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1605814 Permissions Required, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-08/ Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1605814 Permissions Required, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-08/ Vendor Advisory