CVE-2023-4053

Full screen notification obscured by external program

EPSS 0.7%

Vexday Risk Score

3Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS —EPSS 0.7%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

01 Aug 2023Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

A website could have obscured the full screen notification by using a URL with a scheme handled by an external program, such as a mailto URL. This could have led to user confusion and possible spoofing attacks. This vulnerability affects Firefox < 116, Firefox ESR < 115.2, and Thunderbird < 115.2.

Affected products

Mozilla · Firefox Mozilla · Firefox ESR Mozilla · Thunderbird

Want to know if your infrastructure is exposed to this?

Talk to TrueHacking →

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1839079 https://www.mozilla.org/security/advisories/mfsa2023-29/https://www.mozilla.org/security/advisories/mfsa2023-36/https://www.mozilla.org/security/advisories/mfsa2023-38/