CVE-2023-25729

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.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.12%
Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org
Affected: Mozilla Firefox
Affected: Mozilla Thunderbird
Affected: Mozilla Firefox ESR
Published at:
Updated at:

References

Link Tags
https://www.mozilla.org/security/advisories/mfsa2023-06/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2023-05/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2023-07/ vendor advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1792138 issue tracking permissions required

Frequently Asked Questions

What is the severity of CVE-2023-25729?
CVE-2023-25729 has been scored as a high severity vulnerability.
How to fix CVE-2023-25729?
To fix CVE-2023-25729, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-25729 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-25729 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-25729?
CVE-2023-25729 affects Mozilla Firefox, Mozilla Thunderbird, Mozilla Firefox ESR.
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