CVE-2026-14906

Malicious webpage titles could allow overwriting of bundled PDF resources when saving webpages as PDFs in Firefox for iOS

State: Published
Severity: 5.3 Medium
Published: Jul 13, 2026
Updated: Jul 13, 2026
Reserved: Jul 6, 2026

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Description

Pages with malicious titles could potentially allow saved PDF content to overwrite PDF files or bundled content within the Firefox for iOS application sandbox. This vulnerability was fixed in Firefox for iOS 152.4.

Scores

CVSS	Score	Vector	Source
3.1	5.3 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N	CISA-ADP

Weaknesses

CWE-434 Unrestricted Upload of File with Dangerous Type

Affected Products

Product	Versions
Firefox for iOSMozilla	152.4 and laterNot affected

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2045842
https://www.mozilla.org/security/advisories/mfsa2026-66/

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