Description
Links in a sandboxed iframe could open an external app on Android without the required "allow-" permission. This vulnerability was fixed in Firefox 144 and Thunderbird 144.
Affected products
mozilla: firefox; mozilla: thunderbird; google: android
References3
- www.mozilla.org/security/advisories/mfsa2025-81/ Vendor Advisory
- www.mozilla.org/security/advisories/mfsa2025-84/ Vendor Advisory
- bugzilla.mozilla.org/show_bug.cgi?id=1818679 Issue TrackingPermissions Required
Metrics
- CVSS 3.1
-
6.5
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N - EPSS — exploit probability
- 0% percentile: 14 · as of 9 November 2026
- CWE
- CWE-284
Could this be exploited in your environment?
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