Rapid7 Vulnerability & Exploit Database

MFSA2021-50 Thunderbird: Security Vulnerabilities fixed in Thunderbird 91.3 (CVE-2021-38506)

Free InsightVM Trial No Credit Card Necessary
2024 Attack Intel Report Latest research by Rapid7 Labs
Back to Search

MFSA2021-50 Thunderbird: Security Vulnerabilities fixed in Thunderbird 91.3 (CVE-2021-38506)

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
11/03/2021
Created
11/05/2021
Added
11/04/2021
Modified
01/05/2022

Description

Through a series of navigations, Firefox could have entered fullscreen mode without notification or warning to the user. This could lead to spoofing attacks on the browser UI including phishing. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.

Solution(s)

  • mozilla-thunderbird-upgrade-91_3

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;