Description
Due to a layout change, iframe contents could have been rendered outside of its border. This could have led to user confusion or spoofing attacks. This vulnerability affects Thunderbird < 91.8, Firefox < 99, and Firefox ESR < 91.8.
References (4)
Scores
CVSS v3
5.4
EPSS
0.0021
EPSS Percentile
42.8%
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
< 99.0
mozilla/firefox_esr
< 91.8
mozilla/thunderbird
< 91.8
Published
Dec 22, 2022
Tracked Since
Feb 18, 2026