Security Advisory

CVE-2021-38509

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2021-12-08 21:21:30

Last updated 2024-08-04 01:44:23

Assigner mozilla

State PUBLISHED

Description

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 attackers choosing. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.

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