CVE-2020-15677

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 81 Thunderbird versions prior to 78.3 Firefox ESR versions prior to 78.3

Description The issue allows an attacker to exploit an Open Redirect vulnerability on a website, potentially spoofing the site displayed in the download file dialog. This could make it appear as if the file was downloaded from the original site, rather than the actual site it came from.

Recommendations For Firefox versions prior to 81, update to version 81 or later. For Thunderbird versions prior to 78.3, update to version 78.3 or later. For Firefox ESR versions prior to 78.3, update to version 78.3 or later.