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.
References
Link | Resource |
---|---|
https://bugzilla.mozilla.org/show_bug.cgi?id=1659155 | Issue Tracking Permissions Required Vendor Advisory |
https://www.mozilla.org/security/advisories/mfsa2021-48/ | Vendor Advisory |
Configurations
History
10 Dec 2021, 16:55
Type | Values Removed | Values Added |
---|---|---|
CVSS |
v2 : v3 : |
v2 : 4.3
v3 : 4.3 |
CWE | CWE-346 | |
CPE | cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* | |
References | (MISC) https://www.mozilla.org/security/advisories/mfsa2021-48/ - Vendor Advisory | |
References | (MISC) https://bugzilla.mozilla.org/show_bug.cgi?id=1659155 - Issue Tracking, Permissions Required, Vendor Advisory |
08 Dec 2021, 22:15
Type | Values Removed | Values Added |
---|---|---|
New CVE |
Information
Published : 2021-12-08 22:15
Updated : 2023-12-10 14:09
NVD link : CVE-2021-43531
Mitre link : CVE-2021-43531
CVE.ORG link : CVE-2021-43531
JSON object : View
Products Affected
mozilla
- firefox
CWE
CWE-346
Origin Validation Error