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Vulnerability details: VCID-zbny-98f4-aaae
Vulnerability ID VCID-zbny-98f4-aaae
Aliases CVE-2020-12391
Summary 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.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-863 Incorrect Authorization
CWE-358 Improperly Implemented Security Check for Standard
System Score Found at
generic_textual Medium http://people.canonical.com/~ubuntu-security/cve/2020/CVE-2020-12391.html
cvssv3 7.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-12391.json
epss 0.00107 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
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epss 0.00107 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00107 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00107 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00107 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00107 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00107 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00107 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00107 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00107 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00107 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00107 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
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epss 0.00107 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00107 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
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epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
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epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
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epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
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epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
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epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
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epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
epss 0.02348 https://api.first.org/data/v1/epss?cve=CVE-2020-12391
rhbs medium https://bugzilla.redhat.com/show_bug.cgi?id=1834687
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12391
cvssv2 5.0 https://nvd.nist.gov/vuln/detail/CVE-2020-12391
cvssv3 7.5 https://nvd.nist.gov/vuln/detail/CVE-2020-12391
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2020-12391
archlinux Critical https://security.archlinux.org/AVG-1148
generic_textual Medium https://ubuntu.com/security/notices/USN-4353-1
generic_textual Medium https://usn.ubuntu.com/usn/usn-4353-1
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2020-16
generic_textual Medium https://www.mozilla.org/en-US/security/advisories/mfsa2020-16/#CVE-2020-12391
Reference id Reference type URL
http://people.canonical.com/~ubuntu-security/cve/2020/CVE-2020-12391.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-12391.json
https://api.first.org/data/v1/epss?cve=CVE-2020-12391
https://bugzilla.mozilla.org/show_bug.cgi?id=1457100
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12391
https://ubuntu.com/security/notices/USN-4353-1
https://usn.ubuntu.com/usn/usn-4353-1
https://www.mozilla.org/en-US/security/advisories/mfsa2020-16/#CVE-2020-12391
https://www.mozilla.org/security/advisories/mfsa2020-16/
1834687 https://bugzilla.redhat.com/show_bug.cgi?id=1834687
ASA-202005-3 https://security.archlinux.org/ASA-202005-3
AVG-1148 https://security.archlinux.org/AVG-1148
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
CVE-2020-12391 https://nvd.nist.gov/vuln/detail/CVE-2020-12391
mfsa2020-16 https://www.mozilla.org/en-US/security/advisories/mfsa2020-16
USN-4353-1 https://usn.ubuntu.com/4353-1/
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-12391.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-12391
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-12391
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-12391
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.44573
EPSS Score 0.00107
Published At Nov. 1, 2024, midnight
Date Actor Action Source VulnerableCode Version
There are no relevant records.