CVE-2023-4053

2023-08-0115:15:10

CWE-59

[email protected]

web.nvd.nist.gov

vulnerability

website

notification

spoofing

firefox

thunderbird

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

6.5 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

47.1%

JSON

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.