CVE-2025-11716

Sandboxed iframes allowed links to open in external apps (Android only)

State: Published
Severity: 6.5 Medium
Published: Oct 14, 2025
Updated: Apr 13, 2026
Reserved: Oct 13, 2025

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.

Scores

CVSS	Score	Vector	Source
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N	CISA-ADP

Weaknesses

CWE-284 Improper Access Control

Affected Products

Product	Versions
FirefoxMozilla	144 and laterNot affected
ThunderbirdMozilla	144 and laterNot affected

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1818679
https://www.mozilla.org/security/advisories/mfsa2025-81/
https://www.mozilla.org/security/advisories/mfsa2025-84/

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