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CVE-2020-6808

Medium

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.

SeverityMedium
CVSS6.5
Exploit probability—
ProductMozilla Firefox
PublishedMar 25, 2020
First seenMar 25, 2020

How to fix

Update
  • mozilla firefox74.0 or later

Affected products

ProductAffected versionsFixed in
mozilla firefoxv < 74.074.0

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