CVE-2021-38509 (GCVE-0-2021-38509)

Vulnerability from cvelistv5 – Published: 2021-12-08 21:21 – Updated: 2024-08-04 01:44
VLAI?
Summary
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.
Severity ?
No CVSS data available.
CWE
  • Javascript alert box could have been spoofed onto an arbitrary domain
Assigner
References
Impacted products
Vendor Product Version
Mozilla Firefox Affected: unspecified , < 94 (custom)
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    Mozilla Thunderbird Affected: unspecified , < 91.3 (custom)
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    Mozilla Firefox ESR Affected: unspecified , < 91.3 (custom)
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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