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Vulnerability details: VCID-1nwz-jh4u-aaah
Vulnerability ID VCID-1nwz-jh4u-aaah
Aliases CVE-2019-11720
Summary Some unicode characters are incorrectly treated as whitespace during the parsing of web content instead of triggering parsing errors. This allows malicious code to then be processed, evading cross-site scripting (XSS) filtering. This vulnerability affects Firefox < 68.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-172 Encoding Error
System Score Found at
generic_textual Medium http://people.canonical.com/~ubuntu-security/cve/2019/CVE-2019-11720.html
cvssv3 5.8 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-11720.json
epss 0.00384 https://api.first.org/data/v1/epss?cve=CVE-2019-11720
epss 0.00384 https://api.first.org/data/v1/epss?cve=CVE-2019-11720
epss 0.00384 https://api.first.org/data/v1/epss?cve=CVE-2019-11720
epss 0.00384 https://api.first.org/data/v1/epss?cve=CVE-2019-11720
epss 0.00521 https://api.first.org/data/v1/epss?cve=CVE-2019-11720
epss 0.00521 https://api.first.org/data/v1/epss?cve=CVE-2019-11720
epss 0.00521 https://api.first.org/data/v1/epss?cve=CVE-2019-11720
epss 0.00521 https://api.first.org/data/v1/epss?cve=CVE-2019-11720
epss 0.00521 https://api.first.org/data/v1/epss?cve=CVE-2019-11720
epss 0.00521 https://api.first.org/data/v1/epss?cve=CVE-2019-11720
epss 0.00521 https://api.first.org/data/v1/epss?cve=CVE-2019-11720
epss 0.00521 https://api.first.org/data/v1/epss?cve=CVE-2019-11720
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epss 0.00681 https://api.first.org/data/v1/epss?cve=CVE-2019-11720
epss 0.00681 https://api.first.org/data/v1/epss?cve=CVE-2019-11720
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epss 0.00681 https://api.first.org/data/v1/epss?cve=CVE-2019-11720
epss 0.00681 https://api.first.org/data/v1/epss?cve=CVE-2019-11720
epss 0.00681 https://api.first.org/data/v1/epss?cve=CVE-2019-11720
epss 0.00681 https://api.first.org/data/v1/epss?cve=CVE-2019-11720
epss 0.00681 https://api.first.org/data/v1/epss?cve=CVE-2019-11720
epss 0.00681 https://api.first.org/data/v1/epss?cve=CVE-2019-11720
epss 0.00681 https://api.first.org/data/v1/epss?cve=CVE-2019-11720
epss 0.00681 https://api.first.org/data/v1/epss?cve=CVE-2019-11720
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epss 0.00681 https://api.first.org/data/v1/epss?cve=CVE-2019-11720
epss 0.00681 https://api.first.org/data/v1/epss?cve=CVE-2019-11720
epss 0.00681 https://api.first.org/data/v1/epss?cve=CVE-2019-11720
epss 0.00681 https://api.first.org/data/v1/epss?cve=CVE-2019-11720
epss 0.00681 https://api.first.org/data/v1/epss?cve=CVE-2019-11720
epss 0.00681 https://api.first.org/data/v1/epss?cve=CVE-2019-11720
epss 0.00681 https://api.first.org/data/v1/epss?cve=CVE-2019-11720
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epss 0.00681 https://api.first.org/data/v1/epss?cve=CVE-2019-11720
epss 0.00681 https://api.first.org/data/v1/epss?cve=CVE-2019-11720
epss 0.00681 https://api.first.org/data/v1/epss?cve=CVE-2019-11720
epss 0.00681 https://api.first.org/data/v1/epss?cve=CVE-2019-11720
epss 0.00681 https://api.first.org/data/v1/epss?cve=CVE-2019-11720
epss 0.00681 https://api.first.org/data/v1/epss?cve=CVE-2019-11720
epss 0.00681 https://api.first.org/data/v1/epss?cve=CVE-2019-11720
epss 0.00681 https://api.first.org/data/v1/epss?cve=CVE-2019-11720
epss 0.00681 https://api.first.org/data/v1/epss?cve=CVE-2019-11720
epss 0.00681 https://api.first.org/data/v1/epss?cve=CVE-2019-11720
epss 0.00681 https://api.first.org/data/v1/epss?cve=CVE-2019-11720
epss 0.00681 https://api.first.org/data/v1/epss?cve=CVE-2019-11720
epss 0.01744 https://api.first.org/data/v1/epss?cve=CVE-2019-11720
rhbs medium https://bugzilla.redhat.com/show_bug.cgi?id=1730983
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11720
cvssv2 4.3 https://nvd.nist.gov/vuln/detail/CVE-2019-11720
cvssv3 6.1 https://nvd.nist.gov/vuln/detail/CVE-2019-11720
cvssv3 6.1 https://nvd.nist.gov/vuln/detail/CVE-2019-11720
cvssv3.1 6.1 https://nvd.nist.gov/vuln/detail/CVE-2019-11720
archlinux Critical https://security.archlinux.org/AVG-1002
generic_textual Medium https://ubuntu.com/security/notices/USN-4054-1
generic_textual Medium https://usn.ubuntu.com/usn/usn-4054-1
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2019-21
generic_textual Medium https://www.mozilla.org/en-US/security/advisories/mfsa2019-21/#CVE-2019-11720
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2019-28
Reference id Reference type URL
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00009.html
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00010.html
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00011.html
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00017.html
http://people.canonical.com/~ubuntu-security/cve/2019/CVE-2019-11720.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-11720.json
https://api.first.org/data/v1/epss?cve=CVE-2019-11720
https://bugzilla.mozilla.org/show_bug.cgi?id=1556230
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11720
https://security.gentoo.org/glsa/201908-12
https://ubuntu.com/security/notices/USN-4054-1
https://usn.ubuntu.com/usn/usn-4054-1
https://www.mozilla.org/en-US/security/advisories/mfsa2019-21/#CVE-2019-11720
https://www.mozilla.org/security/advisories/mfsa2019-21/
1730983 https://bugzilla.redhat.com/show_bug.cgi?id=1730983
ASA-201907-4 https://security.archlinux.org/ASA-201907-4
AVG-1002 https://security.archlinux.org/AVG-1002
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:*:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
CVE-2019-11720 https://nvd.nist.gov/vuln/detail/CVE-2019-11720
mfsa2019-21 https://www.mozilla.org/en-US/security/advisories/mfsa2019-21
mfsa2019-28 https://www.mozilla.org/en-US/security/advisories/mfsa2019-28
USN-4054-1 https://usn.ubuntu.com/4054-1/
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:L Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-11720.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:M/Au:N/C:N/I:P/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2019-11720
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:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2019-11720
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:R/S:C/C:L/I:L/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2019-11720
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:R/S:C/C:L/I:L/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2019-11720
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 0.72784
EPSS Score 0.00384
Published At Dec. 17, 2024, midnight
Date Actor Action Source VulnerableCode Version
There are no relevant records.