Medium severity · published Dec 22, 2022
CVE-2022-31738
When exiting fullscreen mode, an iframe could have confused the browser about the current state of fullscreen, resulting in potential user confusion or spoofing attacks
6.5
CVSS
0.6%
EPSS
No
On KEV
Description
When exiting fullscreen mode, an iframe could have confused the browser about the current state of fullscreen, resulting in potential user confusion or spoofing attacks. This vulnerability affects Thunderbird < 91.10, Firefox < 101, and Firefox ESR < 91.10.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 50% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FI
Firefox · Mozilla
before 101 · source: NVD
FE
Firefox Esr · Mozilla
before 91.10 · source: NVD
TH
Thunderbird · Mozilla
before 91.10 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-31738
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-31738
Issue Tracking
https://bugzilla.mozilla.org/show_bug.cgi?id=1756388
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-20/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-21/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-22/
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