CVE-2023-4053

MEDIUM

Firefox <116, Firefox ESR <115.2, Thunderbird <115.2 - SSRF

Title source: llm
STIX 2.1

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.

References (4)

Core 4

Scores

CVSS v3 6.5
EPSS 0.0014
EPSS Percentile 34.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-59
Status published
Products (1)
mozilla/firefox < 116.0
Published Aug 01, 2023
Tracked Since Feb 18, 2026