Vulnerability in Mozilla Firefox
CVE-2023-4045
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.
EPSS: 0.006 (44.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
Affected products
- Mozilla Firefox — versions unspecified
- Mozilla Firefox Esr — versions unspecified
- Debian Debian_linux — versions 11.0, 12.0
Weakness classification (CWE)
References
- security@mozilla.org (Permissions Required, Issue Tracking)
- security@mozilla.org (Vendor Advisory)
- security@mozilla.org (Vendor Advisory)
- security@mozilla.org (Vendor Advisory)
- security@mozilla.org (Third Party Advisory)
- security@mozilla.org (Third Party Advisory)
- security@mozilla.org
- security@mozilla.org
Frequently asked questions
- What is CVE-2023-4045?
- CVE-2023-4045 is a medium-severity vulnerability in Mozilla Firefox, classified under Origin Validation Error. CVSS score: 5.3/10. Published 2023-08-01.
- How severe is CVE-2023-4045?
- Medium severity. CVSS v3 base score is 5.3 out of 10.