Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Mozilla / Firefox | affected unspecified before 94 |
CWE
No CWE identifiers supplied.
References
- https://www.mozilla.org/security/advisories/mfsa2021-48/
- https://bugzilla.mozilla.org/show_bug.cgi?id=1659155
ADP enrichment
No English description supplied.