6.5

CVE-2026-6755

Mitigation bypass in the DOM: postMessage component

Mitigation bypass in the DOM: postMessage component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Mozilla ≫ Firefox SwEdition- Version < 150.0
Mozilla ≫ Thunderbird SwEdition- Version < 150.0
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.19% 0.085
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
134c704f-9b21-4f2e-91b3-4a467353bcc0 6.5 2.8 3.6
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-352 Cross-Site Request Forgery (CSRF)

The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.

https://www.mozilla.org/security/advisories/mfsa2026-30/
Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1880429
Permissions Required
https://www.mozilla.org/security/advisories/mfsa2026-33/
Vendor Advisory