CVE-2022-22748

MEDIUM

Firefox < 96.0 and Firefox ESR < 91.5 - Origin Spoofing via External URL Protocol Handler

Title source: llm
STIX 2.1

Description

Malicious websites could have confused Firefox into showing the wrong origin when asking to launch a program and handling an external URL protocol. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.

References (4)

Core 4

Scores

CVSS v3 6.5
EPSS 0.0040
EPSS Percentile 61.2%
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 poc
Automatable no
Technical Impact partial

Details

CWE
CWE-79
Status published
Products (3)
mozilla/firefox < 96.0
mozilla/firefox_esr < 91.5
mozilla/thunderbird < 91.5
Published Dec 22, 2022
Tracked Since Feb 18, 2026