Mozilla: >> Firefox Mobile >> 147.0 Security Vulnerabilities
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.
CVSS Score
5.3
EPSS Score
0.002
Published
2026-07-13
Firefox for iOS used partial domain matching when attaching cookies to PDF requests, allowing a malicious site on a suffix domain to receive cookies belonging to the target site. This vulnerability was fixed in Firefox for iOS 152.0.
CVSS Score
6.5
EPSS Score
0.001
Published
2026-06-16
Firefox for iOS preserved cookies set on the initial PDF request across cross-origin HTTP redirects in TemporaryDocument, allowing a malicious site to inject arbitrary cookies into requests to an unrelated target domain. This vulnerability was fixed in Firefox for iOS 152.0.
CVSS Score
4.3
EPSS Score
0.001
Published
2026-06-16