CVE-2020-12394 — Improper Input Validation in Mozilla Firefox

CWE-20 — Improper Input ValidationCWE-451 — User Interface (UI) Misrepresentation of Critical Information11 documents8 sources
Severity
3.3LOWNVD
OSV8.1
EPSS
0.1%
top 64.48%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Mozilla FirefoxDebian Firefox
Timeline
PublishedMay 26
Latest updateMay 24

Description

A logic flaw in our location bar implementation could have allowed a local attacker to spoof the current location by selecting a different origin and removing focus from the input element. This vulnerability affects Firefox < 76.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:NExploitability: 1.8 | Impact: 1.4

Affected Packages5 packages

▶debiandebian/firefox< firefox 76.0-1 (sid)
▶CVEListV5mozilla/firefoxunspecified — 76
▶NVDmozilla/firefox< 76.0
▶Ubuntumozilla/firefox< 76.0+build2-0ubuntu0.16.04.1+5
▶mozillamozilla/firefox

🔴Vulnerability Details

4
GHSA
GHSA-vp98-fg4h-f354: A logic flaw in our location bar implementation could have allowed a local attacker to spoof the current location by selecting a different origin and↗2022-05-24
▶
OSV
firefox regression↗2020-05-12
▶
OSV
CVE-2020-12394: A logic flaw in our location bar implementation could have allowed a local attacker to spoof the current location by selecting a different origin and↗2020-05-07
▶
OSV
firefox vulnerabilities↗2020-05-07
▶

📋Vendor Advisories

5
Ubuntu
Firefox regression↗2020-05-12
▶
Ubuntu
Firefox vulnerabilities↗2020-05-07
▶
Red Hat
Mozilla: URL spoofing in location bar when unfocussed↗2020-05-05
▶
Debian
CVE-2020-12394: firefox - A logic flaw in our location bar implementation could have allowed a local attac...↗2020
▶
Mozilla
Mozilla Foundation Security Advisory 2020-16: CVE-2020-12394↗
▶

💬Community

1
Bugzilla
CVE-2020-12394 Mozilla: URL spoofing in location bar when unfocussed↗2020-05-12
▶