CVE-2019-11730 log

Source
Severity Medium
Remote Yes
Type Arbitrary filesystem access
Description
A vulnerability exists in Firefox before 68.0 where if a user opens a locally saved HTML file, this file can use file: URIs to access other files in the same directory or sub-directories if the names are known or guessed. The Fetch API can then be used to read the contents of any files stored in these directories and they may uploaded to a server. Luigi Gubello demonstrated that in combination with a popular Android messaging app, if a malicious HTML attachment is sent to a user and they opened that attachment in Firefox, due to that app's predictable pattern for locally-saved file names, it is possible to read attachments the victim received from other correspondents.
Group Package Affected Fixed Severity Status Ticket
AVG-1002 firefox 67.0.4-2 68.0-1 Critical Fixed
Date Advisory Group Package Severity Description
17 Jul 2019 ASA-201907-4 AVG-1002 firefox Critical multiple issues
References
https://www.mozilla.org/en-US/security/advisories/mfsa2019-21/#CVE-2019-11730
https://bugzilla.mozilla.org/show_bug.cgi?id=1558299