Published: 26/05/2020 Updated: 12/07/2022

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

CVSS v3 Base Score: 7.5 | Impact Score: 3.6 | Exploitability Score: 3.9

VMScore: 445

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

Documents formed using data: URLs in an OBJECT element failed to inherit the CSP of the creating context. This allowed the execution of scripts that should have been blocked, albeit with a unique opaque origin. This vulnerability affects Firefox < 76.

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mozilla firefox

USN-4353-1 caused a regression in Firefox ...

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

Mozilla Foundation Security Advisory 2020-16 Security Vulnerabilities fixed in Firefox 76 Announced May 5, 2020 Impact critical Products Firefox Fixed in Firefox 76 ...

Documents formed using data: URLs in an object element failed to inherit the CSP of the creating context This allowed the execution of scripts that should have been blocked, albeit with a unique opaque origin ...

CWE-863 https://bugzilla.mozilla.org/show_bug.cgi?id=1457100 https://www.mozilla.org/security/advisories/mfsa2020-16/https://nvd.nist.gov https://usn.ubuntu.com/4353-2/

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CVE-2020-12391

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