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Vulnerability details: VCID-1xwy-byfw-aaaf
Vulnerability ID VCID-1xwy-byfw-aaaf
Aliases CVE-2018-5166
Summary WebExtensions can use request redirection and a "filterReponseData" filter to bypass host permission settings to redirect network traffic and access content from a host for which they do not have explicit user permission. This vulnerability affects Firefox < 60.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-269 Improper Privilege Management
CWE-266 Incorrect Privilege Assignment
System Score Found at
generic_textual Medium http://people.canonical.com/~ubuntu-security/cve/2018/CVE-2018-5166.html
cvssv3 7.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-5166.json
epss 0.00204 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.00204 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.00204 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.00212 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.00212 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.00212 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.00212 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.00212 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.00212 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.00212 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.00212 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.00212 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.00212 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.00212 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.00212 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01112 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01112 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01112 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01112 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01112 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01112 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01112 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01112 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01112 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01112 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01112 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01112 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01112 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01112 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01112 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01112 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01112 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01112 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01112 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01112 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01112 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01112 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01112 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01112 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01112 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01112 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01112 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01112 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01112 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01112 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01112 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
epss 0.04098 https://api.first.org/data/v1/epss?cve=CVE-2018-5166
rhbs medium https://bugzilla.redhat.com/show_bug.cgi?id=1576267
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-5166
cvssv2 5.0 https://nvd.nist.gov/vuln/detail/CVE-2018-5166
cvssv3 7.5 https://nvd.nist.gov/vuln/detail/CVE-2018-5166
archlinux Critical https://security.archlinux.org/AVG-693
generic_textual Medium https://ubuntu.com/security/notices/USN-3645-1
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2018-11
generic_textual Medium https://www.mozilla.org/en-US/security/advisories/mfsa2018-11/#CVE-2018-5166
cvssv3.1 8.8 http://www.securitytracker.com/id/1040896
generic_textual HIGH http://www.securitytracker.com/id/1040896
Reference id Reference type URL
http://people.canonical.com/~ubuntu-security/cve/2018/CVE-2018-5166.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-5166.json
https://api.first.org/data/v1/epss?cve=CVE-2018-5166
https://bugzilla.mozilla.org/show_bug.cgi?id=1437325
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-5166
https://ubuntu.com/security/notices/USN-3645-1
https://usn.ubuntu.com/3645-1/
https://www.mozilla.org/en-US/security/advisories/mfsa2018-11/#CVE-2018-5166
https://www.mozilla.org/security/advisories/mfsa2018-11/
http://www.securityfocus.com/bid/104139
http://www.securitytracker.com/id/1040896
1576267 https://bugzilla.redhat.com/show_bug.cgi?id=1576267
ASA-201805-10 https://security.archlinux.org/ASA-201805-10
AVG-693 https://security.archlinux.org/AVG-693
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:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
CVE-2018-5166 https://nvd.nist.gov/vuln/detail/CVE-2018-5166
mfsa2018-11 https://www.mozilla.org/en-US/security/advisories/mfsa2018-11
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-5166.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:P/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2018-5166
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:N/S:U/C:H/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2018-5166
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:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at http://www.securitytracker.com/id/1040896
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 0.58058
EPSS Score 0.00204
Published At Dec. 17, 2024, midnight
Date Actor Action Source VulnerableCode Version
There are no relevant records.