PT-2021-15633 · Mozilla+1 · Firefox For Android+1

Muneaki Nishimura · Published 2021-02-26 · Updated 2024-12-12 · CVE-2021-23976

Positive Technologies (AI Summary)

CVSS v3.1

8.1

High

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Name of the Vulnerable Software and Affected Versions: Firefox for Android versions prior to 86

Description: The issue allows malicious intents from other installed apps to declare webapp manifests for other origins, potentially leading to cross-origin attacks on targeted websites and UI spoofing by gaining fullscreen access.

Recommendations: For versions prior to 86, update to version 86 or later to resolve the issue.

Fix

Clickjacking

Weakness Enumeration

CWE-1021

Related Identifiers

ALT-PU-2021-1428

ALT-PU-2021-3368

ALT-PU-2022-1782

CVE-2021-23976

OPENSUSE-SU-2024:10600-1

OPENSUSE-SU-2024:14572-1

Affected Products

Alt Linux

Firefox For Android

References · 1872

• https://nvd.nist.gov/vuln/detail/CVE-2021-23976 · Security Note
• https://cve.org/CVERecord?id=CVE-2021-23976 · Security Note
• https://osv.dev/vulnerability/CVE-2021-23976 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-23976 · Vendor Advisory
• https://mozilla.org/security/advisories/mfsa2021-07 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-23976 · Vendor Advisory
• https://bugzilla.mozilla.org/show_bug.cgi?id=1684627 · Vendor Advisory
• https://security.gentoo.org/glsa/202104-10 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:10600-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:14572-1 · Vendor Advisory
• https://mozilla.org/en-US/security/advisories/mfsa2021-07/#CVE-2021-23976 · Vendor Advisory
• https://suse.com/security/cve/CVE-2024-2615 · Note
• https://suse.com/security/cve/CVE-2022-38477 · Note
• https://suse.com/security/cve/CVE-2022-28282 · Note
• https://suse.com/security/cve/CVE-2020-35111 · Note