CVE-2020-15665

Public Exploit

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.

4.3

CVSS

Severity: Medium

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.19%

Vendor Advisory mozilla.org Vendor Advisory mozilla.org

Affected: Mozilla Firefox

References

Link	Tags
https://www.mozilla.org/security/advisories/mfsa2020-36/	release notes vendor advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1651636	issue tracking exploit vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-15665?: CVE-2020-15665 has been scored as a medium severity vulnerability.
How to fix CVE-2020-15665?: To fix CVE-2020-15665, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-15665 being actively exploited in the wild?: It is possible that CVE-2020-15665 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-15665?: CVE-2020-15665 affects Mozilla Firefox.

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