8.8

CVE-2026-16396

Privilege escalation in WebExtensions

Privilege escalation in WebExtensions. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Mozilla ≫ Firefox SwEditionesr Version < 140.13.0
Mozilla ≫ Firefox SwEdition- Version < 153.0.0
Mozilla ≫ Thunderbird Version < 140.13.0
Mozilla ≫ Thunderbird Version >= 141.0 < 153.0
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.24% 0.153
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
CISA-ADP 8.8 2.8 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE-269 Improper Privilege Management

The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.

https://www.mozilla.org/security/advisories/mfsa2026-68/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-70/
Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=2047240
Permissions Required
https://www.mozilla.org/security/advisories/mfsa2026-71/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-72/
Vendor Advisory