Search for vulnerabilities
Vulnerability details: VCID-578j-1ump-4ybs
Vulnerability ID VCID-578j-1ump-4ybs
Aliases CVE-2020-15664
Summary By holding a reference to the eval() function from an about:blank window, a malicious webpage could have gained access to the InstallTrigger object which would allow them to prompt the user to install an extension. Combined with user confusion, this could result in an unintended or malicious extension being installed.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-648 Incorrect Use of Privileged APIs
CWE-863 Incorrect Authorization
System Score Found at
cvssv3 6.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-15664.json
epss 0.00371 https://api.first.org/data/v1/epss?cve=CVE-2020-15664
epss 0.00371 https://api.first.org/data/v1/epss?cve=CVE-2020-15664
epss 0.00371 https://api.first.org/data/v1/epss?cve=CVE-2020-15664
epss 0.00371 https://api.first.org/data/v1/epss?cve=CVE-2020-15664
epss 0.00371 https://api.first.org/data/v1/epss?cve=CVE-2020-15664
epss 0.00371 https://api.first.org/data/v1/epss?cve=CVE-2020-15664
epss 0.00371 https://api.first.org/data/v1/epss?cve=CVE-2020-15664
epss 0.00371 https://api.first.org/data/v1/epss?cve=CVE-2020-15664
epss 0.00371 https://api.first.org/data/v1/epss?cve=CVE-2020-15664
epss 0.00371 https://api.first.org/data/v1/epss?cve=CVE-2020-15664
epss 0.00371 https://api.first.org/data/v1/epss?cve=CVE-2020-15664
epss 0.00371 https://api.first.org/data/v1/epss?cve=CVE-2020-15664
epss 0.00371 https://api.first.org/data/v1/epss?cve=CVE-2020-15664
epss 0.00371 https://api.first.org/data/v1/epss?cve=CVE-2020-15664
epss 0.00371 https://api.first.org/data/v1/epss?cve=CVE-2020-15664
epss 0.00371 https://api.first.org/data/v1/epss?cve=CVE-2020-15664
cvssv3.1 7.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 4.3 https://nvd.nist.gov/vuln/detail/CVE-2020-15664
cvssv3.1 6.5 https://nvd.nist.gov/vuln/detail/CVE-2020-15664
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2020-36
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2020-37
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2020-38
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2020-39
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2020-40
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2020-41
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-15664.json
https://api.first.org/data/v1/epss?cve=CVE-2020-15664
https://bugzilla.mozilla.org/show_bug.cgi?id=1658214
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15664
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15669
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://www.mozilla.org/security/advisories/mfsa2020-36/
https://www.mozilla.org/security/advisories/mfsa2020-37/
https://www.mozilla.org/security/advisories/mfsa2020-38/
https://www.mozilla.org/security/advisories/mfsa2020-39/
https://www.mozilla.org/security/advisories/mfsa2020-40/
https://www.mozilla.org/security/advisories/mfsa2020-41/
1872531 https://bugzilla.redhat.com/show_bug.cgi?id=1872531
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: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:a:mozilla:firefox:*:*:*:*:android:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mozilla:firefox:*:*:*:*:android:*:*:*
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
CVE-2020-15664 https://nvd.nist.gov/vuln/detail/CVE-2020-15664
mfsa2020-36 https://www.mozilla.org/en-US/security/advisories/mfsa2020-36
mfsa2020-37 https://www.mozilla.org/en-US/security/advisories/mfsa2020-37
mfsa2020-38 https://www.mozilla.org/en-US/security/advisories/mfsa2020-38
mfsa2020-39 https://www.mozilla.org/en-US/security/advisories/mfsa2020-39
mfsa2020-40 https://www.mozilla.org/en-US/security/advisories/mfsa2020-40
mfsa2020-41 https://www.mozilla.org/en-US/security/advisories/mfsa2020-41
RHSA-2020:3555 https://access.redhat.com/errata/RHSA-2020:3555
RHSA-2020:3556 https://access.redhat.com/errata/RHSA-2020:3556
RHSA-2020:3557 https://access.redhat.com/errata/RHSA-2020:3557
RHSA-2020:3558 https://access.redhat.com/errata/RHSA-2020:3558
RHSA-2020:3559 https://access.redhat.com/errata/RHSA-2020:3559
RHSA-2020:3631 https://access.redhat.com/errata/RHSA-2020:3631
RHSA-2020:3632 https://access.redhat.com/errata/RHSA-2020:3632
RHSA-2020:3633 https://access.redhat.com/errata/RHSA-2020:3633
RHSA-2020:3634 https://access.redhat.com/errata/RHSA-2020:3634
RHSA-2020:3643 https://access.redhat.com/errata/RHSA-2020:3643
USN-4474-1 https://usn.ubuntu.com/4474-1/
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-15664.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:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H 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:N/I:P/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-15664
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:R/S:U/C:N/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-15664
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 0.58086
EPSS Score 0.00371
Published At Aug. 5, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:09:40.914320+00:00 Mozilla Importer Import https://github.com/mozilla/foundation-security-advisories/blob/master/announce/2020/mfsa2020-36.yml 37.0.0