CVE-2023-25729
This could lead to further malicious actions such as downloading files or interacting with software already installed on the system.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.68%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 0.68% probability · 50th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-863
- Affected
- mozilla/firefox · mozilla/firefox esr · mozilla/thunderbird
- Source
- security@mozilla.org
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1792138Issue Tracking, Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2023-05/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-06/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-07/Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1792138Issue Tracking, Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2023-05/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-06/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-07/Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1792138Issue Tracking, Permissions Required
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.