Description
Offscreen Canvas did not properly track cross-origin tainting, which could have been used to access image data from another site in violation of same-origin policy. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.
References (8)
Scores
CVSS v3
5.3
EPSS
0.0024
EPSS Percentile
46.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-346
Status
published
Products (3)
debian/debian_linux
11.0
debian/debian_linux
12.0
mozilla/firefox
< 116.0
Published
Aug 01, 2023
Tracked Since
Feb 18, 2026