CVE-2026-57963 – Chat UI manipulation by injection

CVE ID :CVE-2026-57963

Published : July 1, 2026, 12:58 a.m. | 47 minutes ago

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.

Severity: 0.0 | NA

Visit the link for more details, such as CVSS details, affected products, timeline, and more…