cbcvebase.
CVE-2025-4083
published 2025-04-29

CVE-2025-4083: A process isolation vulnerability in Thunderbird stemmed from improper handling of javascript: URIs, which could allow content to execute in the top-level…

critical9.1CVSS 3.1
AVNACLPRNUINSUCHIHAN
A process isolation vulnerability in Thunderbird stemmed from improper handling of javascript: URIs, which could allow content to execute in the top-level document's process instead of the intended frame, potentially enabling a sandbox escape. This vulnerability was fixed in Firefox 138, Firefox ESR 128.10, Firefox ESR 115.23, Thunderbird 138, and Thunderbird 128.10.

Affected

13 ranges
VendorProductVersion rangeFixed in
debianfirefox< firefox 138.0-1 (sid)firefox 138.0-1 (sid)
debianfirefox-esr< firefox 138.0-1 (sid)firefox 138.0-1 (sid)
debianthunderbird< firefox 138.0-1 (sid)firefox 138.0-1 (sid)
mozillafirefox< 115.23115.23
mozillafirefox< 138.0138.0
mozillafirefox
mozillafirefox>= 128.0 < 128.10128.10
mozillathunderbird< 128.10.0128.10.0
mozillathunderbird< 138.0138.0
mozillathunderbird>= 0 < 1:128.10.1esr-1~deb11u11:128.10.1esr-1~deb11u1
mozillathunderbird>= 0 < 1:128.10.0esr-1~deb12u11:128.10.0esr-1~deb12u1
mozillathunderbird>= 0 < 1:128.10.0esr-11:128.10.0esr-1
mozillathunderbird>= 0 < 1:128.10.0esr-11:128.10.0esr-1

CVSS provenance

nvdv3.19.1CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
osv9.1CRITICAL