Published: 25/03/2020 Updated: 30/03/2020

CVSS v2 Base Score: 5 | Impact Score: 2.9 | Exploitability Score: 10

CVSS v3 Base Score: 5.3 | Impact Score: 1.4 | Exploitability Score: 3.9

VMScore: 445

Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N

When protecting CSS blocks with the nonce feature of Content Security Policy, the @import statement in the CSS block could allow an malicious user to inject arbitrary styles, bypassing the intent of the Content Security Policy. This vulnerability affects Firefox < 74.

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mozilla firefox

Firefox could be made to crash or run programs as your login if it opened a malicious website ...

Mozilla Foundation Security Advisory 2020-08 Security Vulnerabilities fixed in Firefox 74 Announced March 10, 2020 Impact high Products Firefox Fixed in Firefox 74 ...

A Content Security Policy bypass has been found in Firefox before 74 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 ...

NVD-CWE-Other https://bugzilla.mozilla.org/show_bug.cgi?id=1605814 https://www.mozilla.org/security/advisories/mfsa2020-08/https://usn.ubuntu.com/4299-1/https://nvd.nist.gov

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CVE-2020-6813

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