Firefox for iOS vulnerabilities

In Firefox for iOS, an attacker could access internal pages or data by exfiltrating a security key from ReaderMode via the referrerpolicy attribute. This affects Firefox for iOS versions prior to 120.

A vulnerability in Firefox for iOS allowed malicious page titles to overwrite saved PDF files or bundled content within the application sandbox. This issue was fixed in version 152.4.

A malicious webpage could interrupt a pending navigation by enqueuing a synchronous JavaScript dialog, causing the browser UI to display the destination origin in the address bar while continuing to render attacker-controlled content. This vulnerability was fixed in Firefox for iOS 152.3.

Firefox for iOS preserved cookies set on the initial PDF request across cross-origin HTTP redirects, allowing a malicious site to inject arbitrary cookies into requests to an unrelated target domain.

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.

Firefox for iOS Reader View did not properly escape HTML tags in JSON-LD metadata, allowing a malicious page to inject markup that changed Reader View behavior and leaked sensitive URL parameters, potentially leading to arbitrary JavaScript execution in an internal origin. Fixed in version 151.2.

Firefox for iOS Reader View replaced page content in its HTML template before replacing other internal placeholders, allowing a malicious page to include a placeholder string later substituted with JSON-LD data, potentially resulting in arbitrary JavaScript execution. Fixed in version 151.2.

Firefox for iOS incorrectly displayed specially crafted RTL and IDN domain names in the link preview UI. This could allow an attacker to impersonate trusted origins. The vulnerability was fixed in Firefox for iOS 151.1.

Firefox for iOS hosted Reader mode on an unauthenticated local web server, allowing another app on the same device to request arbitrary URLs and receive responses with the signed-in user's cookies. Fixed in Firefox for iOS 151.0.

The contextual menu for links could provide an opportunity for cross-site scripting attacks. This vulnerability affects Firefox for iOS < 129.

Long pressing on a download link could potentially provide a means for cross-site scripting. This vulnerability affects Firefox for iOS < 129.

Long pressing on a download link could potentially allow Javascript commands to be executed within the browser. This vulnerability affects Firefox for iOS < 129.

In certain scenarios a malicious website could attempt to display a fake location URL bar which could mislead users as to the actual website address. This vulnerability affects Firefox for iOS before version 127.

When browsing private tabs, some data related to location history or webpage thumbnails could be persisted incorrectly within the sandboxed app bundle after app termination. This vulnerability affects Firefox for iOS < 127.

When a user scans a QR code with the QR Code Scanner feature, they are not prompted before being navigated to the page specified in the code. This may surprise the user and potentially direct them to unwanted content. This vulnerability affects Firefox for iOS < 129.

An attacker could have performed HTML template injection via Reader Mode and exfiltrated user information. This vulnerability affects Firefox for iOS < 120.

When opening a page in reader mode, the redirect URL could have caused attacker-controlled script to execute in a reflected Cross-Site Scripting (XSS) attack. This vulnerability affects Firefox for iOS < 119.

The session restore helper crashes whenever there is no parameter sent to the message handler. This vulnerability affects Firefox for iOS versions below 115.

The vulnerability involves the permission request prompt from the background tab overlaying the site in the foreground tab. This affects Firefox for iOS versions below 115.

Internal URLs are protected by a secret UUID key, which could have been leaked to web page through the Referrer header. This vulnerability affects Firefox for iOS < 102.

A rogue webpage could override the injected WKUserScript used by the download feature, this exploit could result in the user downloading an unintended file. This vulnerability affects Firefox for iOS < 28.

A rogue webpage could override the injected WKUserScript used by the logins autofill, potentially leaking a password for the current domain. Affects Firefox for iOS < 28.

IndexedDB should be cleared when leaving private browsing mode and it is not, the API for WKWebViewConfiguration was being used incorrectly and requires the private instance of this object be deleted when leaving private mode. This vulnerability affects Firefox for iOS < 27.

In Firefox for iOS < 26, the token used for native-to-JS bridging could leak when downloading files, allowing non-app code to call bridging functions.

Vulnerability in Firefox for iOS < 25. The token used for native-to-JS bridging was leaking, potentially allowing non-app code to call bridging functions.