CVE-2020-26979medium
New! CVE Severity Now Using CVSS v3
The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.
Description
When a user typed a URL in the address bar or the search bar and quickly hit the enter key, a website could sometimes capture that event and then redirect the user before navigation occurred to the desired, entered address. To construct a convincing spoof the attacker would have had to guess what the user was typing, perhaps by suggesting it. This vulnerability affects Firefox < 84.
References
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1641287%2C1673299
Details
Source: MITRE
Published: 2021-01-07
Updated: 2021-01-12
Type: CWE-601
Risk Information
CVSS v2
Base Score: 5.8
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:N
Impact Score: 4.9
Exploitability Score: 8.6
Severity: MEDIUM
CVSS v3
Base Score: 6.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Impact Score: 2.7
Exploitability Score: 2.8
Severity: MEDIUM
Vulnerable Software
Configuration 1
OR
Tenable Plugins
| ID | Name | Product | Family | Severity |
|---|---|---|---|---|
| 144299 | Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 20.10 : Firefox vulnerabilities (USN-4671-1) | Nessus | Ubuntu Local Security Checks | critical |
| 144283 | Mozilla Firefox < 84.0 | Nessus | MacOS X Local Security Checks | critical |
| 144282 | Mozilla Firefox < 84.0 | Nessus | Windows | critical |