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Vulnerability details: VCID-3rjq-ru5z-aaac
Vulnerability ID VCID-3rjq-ru5z-aaac
Aliases CVE-2021-29953
Summary A malicious webpage could have forced a Firefox for Android user into executing attacker-controlled JavaScript in the context of another domain, resulting in a Universal Cross-Site Scripting vulnerability. *Note: This issue only affected Firefox for Android. Other operating systems are unaffected. Further details are being temporarily withheld to allow users an opportunity to update.*. This vulnerability affects Firefox < 88.0.1 and Firefox for Android < 88.1.3.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (1)
System Score Found at
cvssv3 6.1 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-29953.json
epss 0.00074 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00074 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00074 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00074 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
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epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
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epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00692 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
epss 0.00983 https://api.first.org/data/v1/epss?cve=CVE-2021-29953
rhbs urgent https://bugzilla.redhat.com/show_bug.cgi?id=1961493
cvssv2 4.3 https://nvd.nist.gov/vuln/detail/CVE-2021-29953
cvssv3 6.1 https://nvd.nist.gov/vuln/detail/CVE-2021-29953
cvssv3.1 6.1 https://nvd.nist.gov/vuln/detail/CVE-2021-29953
archlinux Critical https://security.archlinux.org/AVG-1918
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2021-20
No exploits are available.
Vector: CVSS:3.1/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-2021-29953.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-2021-29953
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:C/C:L/I:L/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2021-29953
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-2021-29953
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 0.34394
EPSS Score 0.00074
Published At Dec. 17, 2024, midnight
Date Actor Action Source VulnerableCode Version
There are no relevant records.