CVE-2020-15665 Other in Firefox

Medium 4.3 Published Updated

Firefox failed to reset the address bar after a beforeunload dialog, potentially displaying an incorrect URL to the user.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2020-15665?

CVE-2020-15665 is a medium-severity vulnerability in Mozilla Firefox, published on 1 Oct 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official 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.

Which versions are affected by CVE-2020-15665?

It affects 1 product.

Products include Mozilla Firefox.

How do I fix CVE-2020-15665?

Upgrade to a fixed version.

Is CVE-2020-15665 being exploited?

There is no known exploitation of CVE-2020-15665 in the wild and no public exploit code.

All Mozilla Firefox vulnerabilities

Sources

Also known as GHSA-24p6-rvcm-7q74, UBUNTU-CVE-2020-15665.

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