WebExtensions can use request redirection and a "filterReponseData" filter to bypass host permission settings to redirect network traffic and access content from a host for which they do not have explicit user permission. This vulnerability affects Firefox < 60.
The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.
| Link | Tags |
|---|---|
| https://www.mozilla.org/security/advisories/mfsa2018-11/ | vendor advisory |
| http://www.securitytracker.com/id/1040896 | third party advisory vdb entry |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1437325 | vendor advisory issue tracking permissions required |
| https://usn.ubuntu.com/3645-1/ | third party advisory vendor advisory |
| http://www.securityfocus.com/bid/104139 | third party advisory vdb entry |