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CVE-2026-57963

Chat UI manipulation by injection PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Mozilla / Thunderbirdunaffected 140.12.1 through 140.*; unaffected 152.0.1 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.