CVE-2020-26979
MEDIUMFirefox < 84.0 - URL Spoofing via Address Bar Event Capture
Title source: llmDescription
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 (2)
Core 2
Core References
Vendor Advisory x_refsource_misc
https://www.mozilla.org/security/advisories/mfsa2020-54/
Exploit, Issue Tracking, Patch, Vendor Advisory x_refsource_misc
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1641287%2C1673299
Scores
CVSS v3
6.1
EPSS
0.0025
EPSS Percentile
48.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Details
CWE
CWE-601
Status
published
Products (1)
mozilla/firefox
< 84.0
Published
Jan 07, 2021
Tracked Since
Feb 18, 2026