When a user loaded a Web Extensions context menu, the Web Extension could access the post-redirect URL of the element clicked. If the Web Extension lacked the WebRequest permission for the hosts involved in the redirect, this would be a same-origin-violation leaking data the Web Extension should have access to. This was fixed to provide the pre-redirect URL. This is related to CVE-2021-43532 but in the context of Web Extensions. This vulnerability affects Firefox < 94.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: mozilla
Published: 2021-12-08T21:20:58
Updated: 2024-08-04T03:55:29.364Z
Reserved: 2021-11-08T00:00:00
Link: CVE-2021-43531
Vulnrichment
No data.
NVD
Status : Modified
Published: 2021-12-08T22:15:09.310
Modified: 2024-11-21T06:29:22.047
Link: CVE-2021-43531
Redhat
No data.