What’s Vulnerable › Vulnerabilities

CVE-2022-3034

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-12-22 · updated 2026-06-17
• Weakness: CWE-1021

Description

When receiving an HTML email that specified to load an <code>iframe</code> element from a remote location, a request to the remote document was sent. However, Thunderbird didn't display the document. This vulnerability affects Thunderbird < 102.2.1 and Thunderbird < 91.13.1.

Affected products

• Mozilla Thunderbird: before 91.31.1; from 102.0 before 102.2.1 — fixed in 102.2.1, 91.31.1

How to fix

Upgrade to a fixed version: Mozilla Thunderbird 102.2.1, 91.31.1. Check the vendor advisory for mitigations.

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=1745751
• https://www.mozilla.org/security/advisories/mfsa2022-38/
• https://www.mozilla.org/security/advisories/mfsa2022-39/
• https://bugzilla.mozilla.org/show_bug.cgi?id=1745751
• https://www.mozilla.org/security/advisories/mfsa2022-38/
• https://www.mozilla.org/security/advisories/mfsa2022-39/

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