CVE-2021-23999

Source
https://nvd.nist.gov/vuln/detail/CVE-2021-23999
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-23999.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2021-23999
Downstream
Related
Published
2021-06-24T14:15:09Z
Modified
2025-08-09T20:01:26Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

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

Affected packages