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Mozilla: Screen hijack via browser fullscreen mode

🗓️ 20 Feb 2023 08:30:10Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 4 Views

A background script calling requestFullscreen and blocking the main thread can force indefinite fullscreen and spoofing.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
ALT Linux		Security fix for the ALT Linux 10 package thunderbird version 102.8.0-alt1
10 Mar 202300:00
–altlinux
ALT Linux		Security fix for the ALT Linux 10 package firefox-esr version 102.8.0-alt1
15 Mar 202300:00
–altlinux
IBM Security Bulletins		Security Bulletin: Due to use of Mozilla Firefox, IBM Cloud Pak for Multicloud Management Monitoring is vulnerable to multiple vulnerabilities.
31 Aug 202311:04
–ibm
IBM Security Bulletins		Security Bulletin: Multiple vulnerabilities of Mozilla Firefox (less than Firefox 102.8ESR) have affected APM Synthetic Playback Agent
19 Apr 202312:45
–ibm
ATTACKERKB		CVE-2023-25730
2 Jun 202317:15
–attackerkb
Tenable Nessus		Amazon Linux 2 : thunderbird (ALAS-2023-1983)
7 Mar 202300:00
–nessus
Tenable Nessus		Amazon Linux 2 : firefox (ALASFIREFOX-2023-007)
27 Sep 202300:00
–nessus
Tenable Nessus		AlmaLinux 8 : firefox (ALSA-2023:0808)
21 Feb 202300:00
–nessus
Tenable Nessus		AlmaLinux 9 : firefox (ALSA-2023:0810)
23 Feb 202300:00
–nessus
Tenable Nessus		AlmaLinux 8 : thunderbird (ALSA-2023:0821)
21 Feb 202300:00
–nessus
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8.6aarch64firefox0:102.8.0-2.el8_6firefox-0:102.8.0-2.el8_6.aarch64.rpm
Red Hat Enterprise Linux8.6ppc64lefirefox0:102.8.0-2.el8_6firefox-0:102.8.0-2.el8_6.ppc64le.rpm
Red Hat Enterprise Linux8.6s390xfirefox0:102.8.0-2.el8_6firefox-0:102.8.0-2.el8_6.s390x.rpm
Red Hat Enterprise Linux8.6x86_64firefox0:102.8.0-2.el8_6firefox-0:102.8.0-2.el8_6.x86_64.rpm
Red Hat Enterprise Linux8.6aarch64firefox-debuginfo0:102.8.0-2.el8_6firefox-debuginfo-0:102.8.0-2.el8_6.aarch64.rpm
Red Hat Enterprise Linux8.6ppc64lefirefox-debuginfo0:102.8.0-2.el8_6firefox-debuginfo-0:102.8.0-2.el8_6.ppc64le.rpm
Red Hat Enterprise Linux8.6s390xfirefox-debuginfo0:102.8.0-2.el8_6firefox-debuginfo-0:102.8.0-2.el8_6.s390x.rpm
Red Hat Enterprise Linux8.6x86_64firefox-debuginfo0:102.8.0-2.el8_6firefox-debuginfo-0:102.8.0-2.el8_6.x86_64.rpm
Red Hat Enterprise Linux8.6aarch64firefox-debugsource0:102.8.0-2.el8_6firefox-debugsource-0:102.8.0-2.el8_6.aarch64.rpm
Red Hat Enterprise Linux8.6ppc64lefirefox-debugsource0:102.8.0-2.el8_6firefox-debugsource-0:102.8.0-2.el8_6.ppc64le.rpm
Rows per page

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21 Nov 2025 18:37Current
7.3High risk
Vulners AI Score7.3
CVSS 3.15.4
EPSS0.00546
SSVC
CWE-821
fullscreen moderequest fullscreenmain threadspoofingbrowserweb security
4