6.5

CVE-2026-57963

Chat UI manipulation by injection

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Mozilla ≫ Thunderbird SwEditionesr Version < 140.12.1
Mozilla ≫ Thunderbird SwEdition- Version < 152.0.1
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.18% 0.078
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
134c704f-9b21-4f2e-91b3-4a467353bcc0 6.5 3.9 2.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

https://www.mozilla.org/security/advisories/mfsa2026-63/
Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=2042910
Permissions Required
https://www.mozilla.org/security/advisories/mfsa2026-64/
Vendor Advisory