Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 74.0 |
Related Weaknesses (CWE)
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1247968Issue TrackingPermissions Required
- https://www.mozilla.org/security/advisories/mfsa2020-08/Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1247968Issue TrackingPermissions Required
- https://www.mozilla.org/security/advisories/mfsa2020-08/Vendor Advisory
FAQ
What is CVE-2020-6808?
CVE-2020-6808 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 ...
How severe is CVE-2020-6808?
CVE-2020-6808 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-6808?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox.