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CVE-2023-4053

Medium

Description

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.

SeverityMedium
CVSS6.5
Exploit probability56. percentile0.8%
ProductMozilla Firefox
PublishedAug 1, 2023
First seenAug 1, 2023

How to fix

Update
  • mozilla firefox116.0 or later

Affected products

ProductAffected versionsFixed in
mozilla firefoxv < 116.0116.0

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