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Vulnerability details: VCID-nrgh-jfcf-6fee
Vulnerability ID VCID-nrgh-jfcf-6fee
Aliases CVE-2020-15653
Summary Mozilla developer Anne van Kesteren discovered that <iframe sandbox> with the allow-popups flag could be bypassed when using noopener links. This could have led to security issues for websites relying on sandbox configurations that allowed popups and hosted arbitrary content.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-276 Incorrect Default Permissions
System Score Found at
cvssv3 6.1 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-15653.json
epss 0.00313 https://api.first.org/data/v1/epss?cve=CVE-2020-15653
epss 0.00313 https://api.first.org/data/v1/epss?cve=CVE-2020-15653
epss 0.00313 https://api.first.org/data/v1/epss?cve=CVE-2020-15653
epss 0.00313 https://api.first.org/data/v1/epss?cve=CVE-2020-15653
epss 0.00313 https://api.first.org/data/v1/epss?cve=CVE-2020-15653
epss 0.00313 https://api.first.org/data/v1/epss?cve=CVE-2020-15653
epss 0.00313 https://api.first.org/data/v1/epss?cve=CVE-2020-15653
epss 0.00313 https://api.first.org/data/v1/epss?cve=CVE-2020-15653
epss 0.00313 https://api.first.org/data/v1/epss?cve=CVE-2020-15653
epss 0.00313 https://api.first.org/data/v1/epss?cve=CVE-2020-15653
epss 0.00313 https://api.first.org/data/v1/epss?cve=CVE-2020-15653
epss 0.00313 https://api.first.org/data/v1/epss?cve=CVE-2020-15653
epss 0.00313 https://api.first.org/data/v1/epss?cve=CVE-2020-15653
epss 0.00313 https://api.first.org/data/v1/epss?cve=CVE-2020-15653
epss 0.00313 https://api.first.org/data/v1/epss?cve=CVE-2020-15653
epss 0.00313 https://api.first.org/data/v1/epss?cve=CVE-2020-15653
epss 0.00313 https://api.first.org/data/v1/epss?cve=CVE-2020-15653
cvssv3.1 4.2 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 4.3 https://nvd.nist.gov/vuln/detail/CVE-2020-15653
cvssv3.1 6.5 https://nvd.nist.gov/vuln/detail/CVE-2020-15653
archlinux High https://security.archlinux.org/AVG-1213
archlinux High https://security.archlinux.org/AVG-1214
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2020-30
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2020-32
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2020-33
Reference id Reference type URL
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00025.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-15653.json
https://api.first.org/data/v1/epss?cve=CVE-2020-15653
https://bugzilla.mozilla.org/show_bug.cgi?id=1521542
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://www.mozilla.org/security/advisories/mfsa2020-30/
https://www.mozilla.org/security/advisories/mfsa2020-32/
https://www.mozilla.org/security/advisories/mfsa2020-33/
1861645 https://bugzilla.redhat.com/show_bug.cgi?id=1861645
AVG-1213 https://security.archlinux.org/AVG-1213
AVG-1214 https://security.archlinux.org/AVG-1214
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_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:*:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
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:20.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
CVE-2020-15653 https://nvd.nist.gov/vuln/detail/CVE-2020-15653
mfsa2020-30 https://www.mozilla.org/en-US/security/advisories/mfsa2020-30
mfsa2020-32 https://www.mozilla.org/en-US/security/advisories/mfsa2020-32
mfsa2020-33 https://www.mozilla.org/en-US/security/advisories/mfsa2020-33
RHSA-2020:3555 https://access.redhat.com/errata/RHSA-2020:3555
RHSA-2020:3557 https://access.redhat.com/errata/RHSA-2020:3557
RHSA-2020:3559 https://access.redhat.com/errata/RHSA-2020:3559
RHSA-2020:4080 https://access.redhat.com/errata/RHSA-2020:4080
USN-4443-1 https://usn.ubuntu.com/4443-1/
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-15653.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: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:N/I:P/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-15653
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-2020-15653
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 0.5395
EPSS Score 0.00313
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:09:41.145269+00:00 Mozilla Importer Import https://github.com/mozilla/foundation-security-advisories/blob/master/announce/2020/mfsa2020-33.yml 37.0.0