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// vulnerability record
cached · NVD via COSMOS syncCVE-2026-57963
MEDIUMpublished 2026-07-01 02:17 UTC · 4 days ago · modified 2026-07-01 18:32 UTC
6.5
CVSS / 10
// description
An attacker who can send HTML chat messages (via Matrix or XMPP) can inject arbitrary styled content, phishing links, and CSS that manipulates the chat UI. This vulnerability was fixed in Thunderbird 152.0.1 and Thunderbird 140.12.1.
// weaknesses (CWE)
- CWE-79