CVE-2022-22759 in Thunderbird

Summary

by MITRE • 12/22/2022

If a document created a sandboxed iframe without <code>allow-scripts</code>, and subsequently appended an element to the iframe's document that e.g. had a JavaScript event handler - the event handler would have run despite the iframe's sandbox. This vulnerability affects Firefox < 97, Thunderbird < 91.6, and Firefox ESR < 91.6.

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• Reservation: 01/07/2022
• Disclosure: 12/22/2022
• Moderation: accepted
• Entry: 2
• Relate: show
• CPE: ready
• CWE: CWE-265 (confirmed)
• CVSS: 6.3 (VulDB)
• EPSS: 0.00743
• KEV: no
• Activities: very low
• Sector: Lawfirm, Chemical, ...

Sources

• MITRE: https://www.cve.org/CVERecord?id=CVE-2022-22759
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-22759
• CVE Details: https://www.cvedetails.com/cve/CVE-2022-22759/