CVE-2022-1520

MEDIUM

Thunderbird < 91.9 - Origin Validation Error in Attached Message Security Status Display

Title source: llm
STIX 2.1

Description

When viewing an email message A, which contains an attached message B, where B is encrypted or digitally signed or both, Thunderbird may show an incorrect encryption or signature status. After opening and viewing the attached message B, when returning to the display of message A, the message A might be shown with the security status of message B. This vulnerability affects Thunderbird < 91.9.

References (2)

Core 2
Core References
Issue Tracking, Permissions Required, Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1745019

Scores

CVSS v3 4.3
EPSS 0.0010
EPSS Percentile 26.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-346
Status published
Products (1)
mozilla/thunderbird < 91.9
Published Dec 22, 2022
Tracked Since Feb 18, 2026