CVE-2023-4045

EPSS 0.5%

Vexday Risk Score

3Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS —EPSS 0.5%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

01 Aug 2023Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

Affected products

Mozilla · Firefox Mozilla · Firefox ESR

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References

https://bugzilla.mozilla.org/show_bug.cgi?id=1833876 https://lists.debian.org/debian-lts-announce/2023/08/msg00008.html https://lists.debian.org/debian-lts-announce/2023/08/msg00010.html https://www.debian.org/security/2023/dsa-5464 https://www.debian.org/security/2023/dsa-5469 https://www.mozilla.org/security/advisories/mfsa2023-29/https://www.mozilla.org/security/advisories/mfsa2023-30/https://www.mozilla.org/security/advisories/mfsa2023-31/