Due to an unusual sequence of attacker-controlled events, a Javascript alert() dialog with arbitrary (although unstyled) contents could be displayed over top an uncontrolled webpage of the attacker's choosing. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: mozilla
Published: 2021-12-08T21:21:30
Updated: 2024-08-04T01:44:23.355Z
Reserved: 2021-08-10T00:00:00
Link: CVE-2021-38509
Vulnrichment
No data.
NVD
Status : Analyzed
Published: 2021-12-08T22:15:09.050
Modified: 2022-12-09T15:22:38.027
Link: CVE-2021-38509
Redhat