CVE-2023-25729 — HIGH (8.8)

Vulnerability 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 Score

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Mozilla	Firefox	< 110.0
Mozilla	Firefox Esr	< 102.8
Mozilla	Thunderbird	< 102.8

Related Weaknesses (CWE)

CWE-863

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1792138Issue TrackingPermissions 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 TrackingPermissions 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 TrackingPermissions Required

FAQ

What is CVE-2023-25729?

CVE-2023-25729 is a vulnerability with a CVSS score of 8.8 (HIGH). 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...

How severe is CVE-2023-25729?

CVE-2023-25729 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2023-25729?

Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox, Mozilla Firefox Esr, Mozilla Thunderbird.