CVE-2023-25730
MEDIUMFirefox <110, Thunderbird <102.8, Firefox ESR <102.8 - Info Disclosure
Title source: llmDescription
A background script invoking <code>requestFullscreen</code> and then blocking the main thread could force the browser into fullscreen mode indefinitely, resulting in potential user confusion or spoofing attacks. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8.
References (4)
Core 4
Core References
Issue Tracking, Permissions Required, Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1794622
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-05/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-06/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-07/
Scores
CVSS v3
5.4
EPSS
0.0055
EPSS Percentile
41.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-1021
Status
published
Products (3)
mozilla/firefox
< 110.0
mozilla/firefox_esr
< 102.8
mozilla/thunderbird
< 102.8
Published
Jun 02, 2023
Tracked Since
Feb 18, 2026