The "Forget about this site" feature in the History pane is intended to remove all saved user data that indicates a user has visited a site. This includes removing any HTTP Strict Transport Security (HSTS) settings received from sites that use it. Due to a bug, sites on the pre-load list also have their HSTS setting removed. On the next visit to that site if the user specifies an http: URL rather than secure https: they will not be protected by the pre-loaded HSTS setting. After that visit the site's HSTS setting will be restored. This vulnerability affects Firefox < 69 and Firefox ESR < 68.1.
History

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cve-icon MITRE Information

Status: PUBLISHED

Assigner: mozilla

Published: 2019-09-27T17:16:08

Updated: 2019-10-06T14:06:34

Reserved: 2019-05-03T00:00:00


Link: CVE-2019-11747

JSON object: View

cve-icon NVD Information

Status : Modified

Published: 2019-09-27T18:15:12.507

Modified: 2019-10-05T06:15:14.083


Link: CVE-2019-11747

JSON object: View

cve-icon Redhat Information

No data.

CWE