Mozilla

A legacy extension's non-contentaccessible, defined resources can be loaded by an arbitrary web page through script. Thi

A shared worker created from a "data:" URL in one tab can be shared by another tab with a different origin, bypassing th

WebExtensions can bypass normal restrictions in some circumstances and use "browser.tabs.executeScript" to inject script

WebExtensions may use "view-source:" URLs to view local "file:" URL content, as well as content stored in "about:cache",

If the "app.support.baseURL" preference is changed by a malicious local program to contain HTML and script content, this

The Find API for WebExtensions can search some privileged pages, such as "about:debugging", if these pages are open in a

Under certain circumstances the "fetch()" API can return transient local copies of resources that were sent with a "no-s

When packets with a mismatched RTP payload type are sent in WebRTC connections, in some circumstances a potentially expl

A lack of parameter validation on IPC messages results in a potential out-of-bounds write through malformed IPC messages

A use-after-free vulnerability can occur when manipulating elements, events, and selection ranges during editor operatio

A buffer overflow can occur when manipulating the SVG "animatedPathSegList" through script. This results in a potentiall

Memory safety bugs were reported in Firefox 58. Some of these bugs showed evidence of memory corruption and we presume t

Memory safety bugs were reported in Firefox 58 and Firefox ESR 52.6. Some of these bugs showed evidence of memory corrup

A potential integer overflow in the "DoCrypt" function of WebCrypto was identified. If a means was found of exploiting i

Low descenders on some Tibetan characters in several fonts on OS X are clipped when rendered in the addressbar. When use

The reader view will display cross-origin content when CORS headers are set to prohibit the loading of cross-origin cont

The screenshot images displayed in the Activity Stream page displayed when a new tab is opened is created from the meta

If right-to-left text is used in the addressbar with left-to-right alignment, it is possible in some circumstances to sc

WebExtensions with the "ActiveTab" permission are able to access frames hosted within the active tab even if the frames

If an HTTP authentication prompt is triggered by a background network request from a page or extension, it is displayed

If an existing cookie is changed to be "HttpOnly" while a document is open, the original value remains accessible throug

The "browser.identity.launchWebAuthFlow" function of WebExtensions is only allowed to load content over "https:" but thi

Development Tools panels of an extension are required to load URLs for the panels as relative URLs from the extension ma

When the text of a specially formatted URL is dragged to the addressbar from page content, the displayed URL can be spoo

If cursor visibility is toggled by script using from 'none' to an image and back through script, the cursor will be rend

An audio capture session can started under an incorrect origin from the site making the capture request. Users are still

A Blob URL can violate origin attribute segregation, allowing it to be accessed from a private browsing tab and for data

The printing process can bypass local access protections to read files available through symlinks, bypassing local file

Style editor traffic in the Developer Tools can be routed through a service worker hosted on a third party website if a

WebExtensions can bypass user prompts to first save and then open an arbitrarily downloaded file. This can result in an

A use-after-free vulnerability can occur during font face manipulation when a font face is freed while still in use, res

A use-after-free vulnerability can occur during mouse event handling due to issues with multiprocess support. This resul

A use-after-free vulnerability can occur when manipulating HTML media elements with media streams, resulting in a potent

A use-after-free vulnerability can occur when manipulating floating "first-letter" style elements, resulting in a potent

A use-after-free vulnerability can occur when arguments passed to the "IsPotentiallyScrollable" function are freed while

A use-after-free vulnerability can occur when the widget listener is holding strong references to browser objects that h

A use-after-free vulnerability can occur when form input elements, focus, and selections are manipulated by script conte

A use-after-free vulnerability can occur during XSL transformations when the source document for the transformation is m

A use-after-free vulnerability can occur while editing events in form elements on a page, resulting in a potentially exp

An integer overflow vulnerability in the Skia library when allocating memory for edge builders on some systems with at l

A heap buffer overflow vulnerability may occur in WebAssembly when "shrinkElements" is called followed by garbage collec

A heap buffer overflow vulnerability may occur in WebAssembly during Memory/Table resizing, resulting in a potentially e

A use-after-free vulnerability can occur when the thread for a Web Worker is freed from memory prematurely instead of fr

A use-after-free vulnerability can occur during WebRTC connections when interacting with the DTMF timers. This results i

Memory safety bugs were reported in Firefox 57. Some of these bugs showed evidence of memory corruption and we presume t

Memory safety bugs were reported in Firefox 57 and Firefox ESR 52.5. Some of these bugs showed evidence of memory corrup

RSS fields can inject new lines into the created email structure, modifying the message body. This vulnerability affects

Crafted CSS in an RSS feed can leak and reveal local path strings, which may contain user name. This vulnerability affec

It is possible to execute JavaScript in the parsed RSS feed when RSS feed is viewed as a website, e.g. via "View -> Feed

A buffer overflow occurs when drawing and validating elements using Direct 3D 9 with the ANGLE graphics library, used fo