CVE-2023-25729
8.8
HIGH
CVSS 3.1
EPSS 0.12%
Description
Permission prompts for opening external schemes were only shown for <code>ContentPrincipals</code> resulting in extensions being able to open them without user interaction via <code>ExpandedPrincipals</code>. This could lead to further malicious actions such as downloading files or interacting with software already installed on the system. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8.
How to fix CVE-2023-25729
To remediate CVE-2023-25729, upgrade the affected package to a fixed version below.
- —upgrade to 102.8.0esr-1~deb11u1 or later
- —upgrade to 1:102.8.0-1~deb11u1 or later
Is CVE-2023-25729 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 102.8.0esr-1~deb11u1
- from 0, < 1:102.8.0-1~deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |