If the "app.support.baseURL" preference is changed by a malicious local program to contain HTML and script content, this content is not sanitized. It will be executed if a user loads "chrome://browser/content/preferences/in-content/preferences.xul" directly in a tab and executes a search. This stored preference is also executed whenever an EME video player plugin displays a CDM-disabled message as a notification message. This vulnerability affects Firefox < 59.
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
| Link | Tags |
|---|---|
| https://bugzilla.mozilla.org/show_bug.cgi?id=1430974 | permissions required |
| http://www.securityfocus.com/bid/103386 | third party advisory vdb entry |
| http://www.securitytracker.com/id/1040514 | third party advisory vdb entry |
| https://usn.ubuntu.com/3596-1/ | third party advisory vendor advisory |
| https://www.mozilla.org/security/advisories/mfsa2018-06/ | vendor advisory |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1430511 | permissions required |