CVE-2023-4045

MEDIUM

Offscreen Canvas - XSS

Title source: llm

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 0.0032
EPSS Percentile 55.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Classification

CWE
CWE-346
Status published

Affected Products (3)

mozilla/firefox < 116.0
debian/debian_linux
debian/debian_linux

Timeline

Published Aug 01, 2023
Tracked Since Feb 18, 2026