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Vulnerability details: VCID-be83-4qnj-aaag
Vulnerability ID VCID-be83-4qnj-aaag
Aliases CVE-2018-12402
Summary The internal WebBrowserPersist code does not use correct origin context for a resource being saved. This manifests when sub-resources are loaded as part of "Save Page As..." functionality. For example, a malicious page could recover a visitor's Windows username and NTLM hash by including resources otherwise unreachable to the malicious page, if they can convince the visitor to save the complete web page. Similarly, SameSite cookies are sent on cross-origin requests when the "Save Page As..." menu item is selected to save a page, which can result in saving the wrong version of resources based on those cookies. This vulnerability affects Firefox < 63.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-346 Origin Validation Error
CWE-284 Improper Access Control
System Score Found at
generic_textual Low http://people.canonical.com/~ubuntu-security/cve/2018/CVE-2018-12402.html
cvssv3 6.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-12402.json
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00268 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00305 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00305 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00305 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00305 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00309 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00309 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00428 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00428 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00428 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00428 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00428 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00428 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00428 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00428 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00428 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
epss 0.00428 https://api.first.org/data/v1/epss?cve=CVE-2018-12402
rhbs medium https://bugzilla.redhat.com/show_bug.cgi?id=1696127
generic_textual Low https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12402
cvssv3 6.1 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 4.3 https://nvd.nist.gov/vuln/detail/CVE-2018-12402
cvssv3 6.5 https://nvd.nist.gov/vuln/detail/CVE-2018-12402
archlinux Critical https://security.archlinux.org/AVG-787
generic_textual Low https://ubuntu.com/security/notices/USN-3801-1
generic_textual Low https://usn.ubuntu.com/usn/usn-3801-1
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2018-26
generic_textual Low https://www.mozilla.org/en-US/security/advisories/mfsa2018-26/#CVE-2018-12402
Reference id Reference type URL
http://people.canonical.com/~ubuntu-security/cve/2018/CVE-2018-12402.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-12402.json
https://api.first.org/data/v1/epss?cve=CVE-2018-12402
https://bugzilla.mozilla.org/show_bug.cgi?id=1447087
https://bugzilla.mozilla.org/show_bug.cgi?id=1469916
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12402
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://ubuntu.com/security/notices/USN-3801-1
https://usn.ubuntu.com/3801-1/
https://usn.ubuntu.com/usn/usn-3801-1
https://www.mozilla.org/en-US/security/advisories/mfsa2018-26/#CVE-2018-12402
https://www.mozilla.org/security/advisories/mfsa2018-26/
http://www.securityfocus.com/bid/105721
http://www.securitytracker.com/id/1041944
1696127 https://bugzilla.redhat.com/show_bug.cgi?id=1696127
ASA-201810-14 https://security.archlinux.org/ASA-201810-14
AVG-787 https://security.archlinux.org/AVG-787
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: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:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
CVE-2018-12402 https://nvd.nist.gov/vuln/detail/CVE-2018-12402
mfsa2018-26 https://www.mozilla.org/en-US/security/advisories/mfsa2018-26
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-12402.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: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
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:P/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2018-12402
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:U/C:H/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2018-12402
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 0.41775
EPSS Score 0.00221
Published At March 28, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
There are no relevant records.