Email Spoofing Vulnerability in Thunderbird < 68.8.0 Allows Sender Address Spoofing

Email Spoofing Vulnerability in Thunderbird < 68.8.0 Allows Sender Address Spoofing

CVE-2020-12397 · MEDIUM Severity

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

By encoding Unicode whitespace characters within the From email header, an attacker can spoof the sender email address that Thunderbird displays. This vulnerability affects Thunderbird < 68.8.0.

Learn more about our Web Application Penetration Testing UK.