CVE-2023-25729

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.

• CWE-863

• 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

Published

Jun 2, 2023

Last Modified

Jun 17, 2026

Status

Modified

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