Medium severity · published Jun 2, 2023
CVE-2023-25730
A background script invoking <code>requestFullscreen</code> and then blocking the main thread could force the browser into fullscreen mode indefinitely, resulting in potential…
5.4
CVSS
0.5%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 46% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FI
Firefox · Mozilla
before 110.0 · source: NVD
FE
Firefox Esr · Mozilla
before 102.8 · source: NVD
TH
Thunderbird · Mozilla
before 102.8 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-25730
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-25730
Issue Tracking
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/
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