Description

Firefox will accept any registered Program ID as an external protocol handler and offer to launch this local application when given a matching URL on Windows operating systems. This should only happen if the program has specifically registered itself as a "URL Handler" in the Windows registry. *Note: This issue only affects Windows operating systems. Other operating systems are unaffected.*. This vulnerability affects Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox < 66.

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1527717

https://www.mozilla.org/security/advisories/mfsa2019-07/

https://www.mozilla.org/security/advisories/mfsa2019-08/

https://www.mozilla.org/security/advisories/mfsa2019-11/

Details

Risk Information

CVSS v2

CVSS v3