If a Blob URL was loaded through some unusual user interaction, it could have been loaded by the System Principal and granted additional privileges that should not be granted to web content. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.
References
Link Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1691153 Exploit Issue Tracking Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-14/ Release Notes Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-15/ Release Notes Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-16/ Release Notes Vendor Advisory
History

No history.

cve-icon MITRE Information

Status: PUBLISHED

Assigner: mozilla

Published: 2021-06-24T13:25:15

Updated: 2021-06-24T13:25:15

Reserved: 2021-01-13T00:00:00


Link: CVE-2021-23999

JSON object: View

cve-icon NVD Information

Status : Analyzed

Published: 2021-06-24T14:15:09.477

Modified: 2022-04-26T15:31:31.837


Link: CVE-2021-23999

JSON object: View

cve-icon Redhat Information

No data.