CVE-2023-4045

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.

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.27%
Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org
Affected: Mozilla Firefox
Affected: Mozilla Firefox ESR
Affected: Mozilla Firefox ESR
Published at:
Updated at:

References

Link Tags
https://bugzilla.mozilla.org/show_bug.cgi?id=1833876 issue tracking permissions required
https://www.mozilla.org/security/advisories/mfsa2023-29/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2023-30/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2023-31/ vendor advisory
https://www.debian.org/security/2023/dsa-5464 third party advisory
https://www.debian.org/security/2023/dsa-5469 third party advisory
https://lists.debian.org/debian-lts-announce/2023/08/msg00008.html
https://lists.debian.org/debian-lts-announce/2023/08/msg00010.html

Frequently Asked Questions

What is the severity of CVE-2023-4045?
CVE-2023-4045 has been scored as a medium severity vulnerability.
How to fix CVE-2023-4045?
To fix CVE-2023-4045, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-4045 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-4045 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-4045?
CVE-2023-4045 affects Mozilla Firefox, Mozilla Firefox ESR, Mozilla Firefox ESR.
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