Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2021-38509

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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.005
EPSS Ranking 64.0%
CVSS Severity
CVSS v3 Score 4.3
CVSS v2 Score 4.3
References
Products affected by CVE-2021-38509


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