CVE-2020-12408

MEDIUM

Firefox < 77.0 - Address Bar Spoofing via Character Injection

Title source: llm
STIX 2.1

Description

When browsing a document hosted on an IP address, an attacker could insert certain characters to flip domain and path information in the address bar. This vulnerability affects Firefox < 77.

References (2)

Core 2
Core References
Issue Tracking, Permissions Required, Vendor Advisory x_refsource_misc
https://bugzilla.mozilla.org/show_bug.cgi?id=1623888

Scores

CVSS v3 6.5
EPSS 0.0017
EPSS Percentile 37.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Details

Status published
Products (1)
mozilla/firefox < 77.0
Published Jul 09, 2020
Tracked Since Feb 18, 2026