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Medium 5.4
External protocol handler (tel:) address bar spoof
A malicious web page could open a tel link in a window that was showing a different website, causing the phone-call prompt to appear as if that site had requested the call. This vulnerability was fixed in Firefox for iOS 156.1.
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Medium 5.4
Facetime protocol handler enabled spoofing
A malicious web page could insert arbitrary text into the FaceTime call prompt shown by iOS, potentialy allowing it to display a phishing message inside system UI. This vulnerability was fixed in Firefox for iOS 156.1.
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Medium 5.5
Saved credentials can be autofilled after cross-origin navigation
Firefox for iOS could autofill saved credentials into a new page if cross-origin navigation occurred while the saved-login UI was open. Autofill was not bound to the originating page or rejected when its origin changed. This vulnerability was fixed in Firefox…
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Medium 4.3
Repeated external URL scheme launches could potentially cause a denial of service in Firefox for iOS
A malicious webpage could repeatedly trigger external URL schemes, causing system prompts or external application launches. This could make Firefox for iOS temporarily unusable until the page is closed. This vulnerability was fixed in Firefox for iOS 155.1.
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Medium 5.4
Stalled popup navigation could allow address bar origin spoofing in Firefox for iOS
A malicious webpage could stall a popup's cross-origin navigation after commit, causing the address bar to display the destination origin while continuing to render attacker-controlled content. This vulnerability was fixed in Firefox for iOS 155.0.
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Medium 5.3
Malicious webpage titles could allow overwriting of bundled PDF resources when saving webpages as PDFs in Firefox for iOS
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.
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Medium 6.3
Interrupted navigation could allow address bar origin spoofing in Firefox for iOS
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 f…
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Medium 4.3
Cookie injection was possible when opening a PDF link
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 Firefo…
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Medium 6.5
Cross-origin cookies could be leaked when opening a PDF link
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.
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Medium 5.4
Arbitrary JavaScript execution in internal pages via Reader View JSON-LD injection
Firefox for iOS Reader View did not properly escape HTML tags in JSON-LD metadata. A malicious page could inject markup that changed Reader View behavior and leaked sensitive URL parameters. These parameters could then be used to access internal pages, potent…
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Medium 5.4
Arbitrary JavaScript execution in Reader View due to wrong HTML replacement order
Firefox for iOS Reader View replaced page content in its HTML template before replacing other internal placeholders. A malicious page could include a placeholder string that was later substituted with JSON-LD data, potentially resulting in arbitrary JavaScrip…
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Medium 5.4
Firefox iOS RTL Domain Rendering Issue in Link Preview
Firefox for iOS displayed specially crafted right-to-left (RTL) and internationalized domain names (IDNs) incorrectly in link preview UI surfaces. A crafted RTL hostname could visually reorder portions of the displayed domain, causing attacker-controlled site…
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Medium 6.5
Sensitive user data could be leaked to other applications through Reader mode
Firefox for iOS hosted Reader mode on an unauthenticated local web server, allowing another application on the same device to request arbitrary URLs and receive the response rendered with the signed-in user's cookies. This vulnerability was fixed in Firefox f…
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Medium 4.3
Interrupted page loads in new tabs could allow website spoofing under trusted domains in Firefox iOS
Malicious scripts that interrupt new tab page loading could cause desynchronization between the address bar and page content, allowing the attacker to spoof arbitrary HTML under a trusted domain. This vulnerability was fixed in Firefox for iOS 147.2.1.
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Medium 6.5
Filename spoofing via Unicode Right-to-Left Override in Firefox for iOS
Unicode RTLO characters could allow malicious websites to spoof filenames in the downloads UI for Firefox for iOS, potentially tricking users into saving files of an unexpected file type. This vulnerability was fixed in Firefox for iOS 144.0.
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Medium 4.0
Data stored in cookies for non-HTML content while browsing Incognito could be viewed after closing private tabs
Cookie storage for non-HTML temporary documents was being shared incorrectly with normal browsing content, allowing information from private tabs to escape Incognito mode even after the user closed all tabs. This vulnerability was fixed in Firefox for iOS 143…
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Medium 6.5
JavaScript alerts could impede UI interaction or allow denial of service attacks
Malicious scripts utilizing repetitive JavaScript alerts could prevent client user interaction in some scenarios and allow for denial of service attacks. This vulnerability was fixed in Firefox for iOS 142.
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Medium 6.1
Content-Disposition headers incorrectly ignored for some MIME types
Firefox for iOS would not respect a Content-Disposition header of type Attachment and would incorrectly display the content inline rather than downloading, potentially allowing for XSS attacks. This vulnerability was fixed in Firefox for iOS 142.
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Medium 5.4
Internal Firefox open-text URL scheme allowed loading of arbitrary URLs
The URL scheme used by Firefox to facilitate searching of text queries could incorrectly allow attackers to open arbitrary website URLs or internal pages if a user was tricked into clicking a link. This vulnerability was fixed in Firefox for iOS 141.
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Medium 4.3
Links using non-HTTP schemes opened from other apps such as Safari could have allowed spoofing of website addresses
Opening maliciously-crafted URLs in Firefox from other apps such as Safari could have allowed attackers to spoof website addresses if the URLs utilized non-HTTP schemes used internally by the Firefox iOS client. This vulnerability was fixed in Firefox for iOS…
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Medium 4.3
Firefox Mobile iOS Address Bar Spoof Using Server-Side Redirect to non-http Scheme
Websites redirecting to a non-HTTP scheme URL could allow a website address to be spoofed for a malicious page. This vulnerability was fixed in Firefox for iOS 136.
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Medium 4.3
QR code user confirmation bypass with invalid protocol
Scanning certain QR codes that included text with a website URL could allow the URL to be opened without presenting the user with a confirmation alert first. This vulnerability was fixed in Firefox for iOS 136.
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Medium 5.4
Firefox Mobile iOS Full Address Bar Spoof Using Server-Side Redirect to internal error page
Malicious websites utilizing a server-side redirect to an internal error page could result in a spoofed website URL. This vulnerability was fixed in Firefox for iOS 136.
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Medium 6.5
Address bar spoofing on iOS using long hostnames
Long hostnames in URLs could be leveraged to obscure the actual host of the website or spoof the website address. This vulnerability was fixed in Firefox for iOS 134.
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Medium 4.3
Firefox Mobile iOS Full Address Bar Spoof Using Open in New Tab and Javascript URI
Opening Javascript links in a new tab via long-press in the Firefox iOS client could result in a malicious script spoofing the URL of the new tab. This vulnerability was fixed in Firefox for iOS 134.
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Medium 5.4
Accessing a non-secure HTTP site that uses a non-existent port may cause the SSL padlock icon in the location URL bar t…
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Medium 5.4
Under certain circumstances, navigating to a webpage would result in the address missing from the location URL bar, mak…
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Medium 6.1
The contextual menu for links could provide an opportunity for cross-site scripting attacks This vulnerability affects …
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Medium 6.1
Long pressing on a download link could potentially provide a means for cross-site scripting This vulnerability affects …
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Medium 6.5
When browsing private tabs, some data related to location history or webpage thumbnails could be persisted incorrectly …
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Medium 4.3
In certain scenarios a malicious website could attempt to display a fake location URL bar which could mislead users as …
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Medium 4.3
Dragging Javascript URLs to the address bar could cause them to be loaded, bypassing restrictions and security protecti…
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Medium 4.7
Upon scanning a JavaScript URI with the QR code scanner, an attacker could have executed unauthorized scripts on the cu…
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Medium 6.1
When a user scans a QR Code with the QR Code Scanner feature, the user is not prompted before being navigated to the pa…
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Medium 6.1
When opening a page in reader mode, the redirect URL could have caused attacker-controlled script to execute in a refle…
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Medium 6.1
Scanning a QR code that contained a javascript: URL would have resulted in the Javascript being executed.
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Medium 6.5
Internal URLs are protected by a secret UUID key, which could have been leaked to web page through the Referrer header.…