Description
Offscreen Canvas did not properly track cross-origin tainting, which could be used to access image data from another site in violation of same-origin policy. This vulnerability affects Firefox < 127, Firefox ESR < 115.12, and Thunderbird < 115.12.
References (6)
Scores
CVSS v3
6.1
EPSS
0.0147
EPSS Percentile
81.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-829
Status
published
Products (3)
mozilla/firefox
< 115.12
mozilla/firefox
< 127.0
mozilla/thunderbird
< 115.12
Published
Jun 11, 2024
Tracked Since
Feb 18, 2026