vulnerability

MFSA2020-36 Firefox: Security Vulnerabilities fixed in Firefox 80 (CVE-2020-15665)

Try Surface Command

Back to search

Severity

CVSS

(AV:N/AC:M/Au:N/C:N/I:P/A:N)

Published

Aug 25, 2020

Added

Aug 26, 2020

Modified

Mar 27, 2026

Description

Firefox did not reset the address bar after the beforeunload dialog was shown if the user chose to remain on the page. This could have resulted in an incorrect URL being shown when used in conjunction with other unexpected browser behaviors. This vulnerability affects Firefox < 80.

Solution

mozilla-firefox-upgrade-80_0

References

CVE-2020-15665
https://attackerkb.com/topics/CVE-2020-15665
EUVD-EUVD-2020-7652
http://www.mozilla.org/security/announce/2020/mfsa2020-36.html
https://euvd.enisa.europa.eu/vulnerability/EUVD-2020-7652

Rapid7 Labs

2026 Global Threat Landscape Report

The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.

Get report