vulnerability
MFSA2020-43 Firefox: Security Vulnerabilities fixed in Firefox ESR 78.3 (CVE-2020-15677)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:N/AC:M/Au:N/C:P/I:P/A:N) | Sep 22, 2020 | Sep 23, 2020 | Feb 10, 2026 |
Severity
6
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:N)
Published
Sep 22, 2020
Added
Sep 23, 2020
Modified
Feb 10, 2026
Description
By exploiting an Open Redirect vulnerability on a website, an attacker could have spoofed the site displayed in the download file dialog to show the original site (the one suffering from the open redirect) rather than the site the file was actually downloaded from. This vulnerability affects Firefox < 81, Thunderbird < 78.3, and Firefox ESR < 78.3.
Solution
mozilla-firefox-esr-upgrade-78_3
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