CVE-2020-6808 Other in Firefox
An attacker can spoof the document location in Firefox by exploiting how JavaScript URLs are parsed, potentially misleading users about the current page origin.
- 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-2020-6808?
CVE-2020-6808 is a medium-severity vulnerability in Mozilla Firefox, published on 25 Mar 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
When a JavaScript URL (javascript:) is evaluated and the result is a string, this string is parsed to create an HTML document, which is then presented. Previously, this document's URL (as reported by the document.location property, for example) was the originating javascript: URL which could lead to spoofing attacks; it is now correctly the URL of the originating document. This vulnerability affects Firefox < 74.
Weakness: CWE-290
Which versions are affected by CVE-2020-6808?
It affects 1 product.
Products include Mozilla Firefox.
How do I fix CVE-2020-6808?
Upgrade to a fixed version.
Is CVE-2020-6808 being exploited?
There is no known exploitation of CVE-2020-6808 in the wild and no public exploit code.
Other vulnerabilities in Mozilla Firefox
Sources
Also known as GHSA-5c26-qqvr-j75w, UBUNTU-CVE-2020-6808.