2018

Sites can bypass security checks on permissions to install lightweight themes by manipulating the "baseURI" property of

The web console and JavaScript debugger do not sanitize all output that can be hyperlinked. Both will display "chrome:"

WebExtensions can use request redirection and a "filterReponseData" filter to bypass host permission settings to redirec

In 32-bit versions of Firefox, the Adobe Flash plugin setting for "Enable Adobe Flash protected mode" is unchecked by de

Content Security Policy (CSP) is not applied correctly to all parts of multipart content sent with the "multipart/x-mixe

If a malicious attacker has used another vulnerability to gain full control over a content process, they may be able to

Plaintext of decrypted emails can leak through the src attribute of remote images, or links. This vulnerability affects

Crafted message headers can cause a Thunderbird process to hang on receiving the message. This vulnerability affects Thu

WebRTC can use a "WrappedI420Buffer" pixel buffer but the owning image object can be freed while it is still in use. Thi

An integer overflow can occur in the Skia library due to 32-bit integer use in an array without integer overflow checks,

The PDF viewer does not sufficiently sanitize PostScript calculator functions, allowing malicious JavaScript to be injec

Same-origin protections for the PDF viewer can be bypassed, allowing a malicious site to intercept messages meant for th

A use-after-free vulnerability can occur while adjusting layout during SVG animations with text paths. This results in a

A use-after-free vulnerability can occur while enumerating attributes during SVG animations with clip paths. This result

If websocket data is sent with mixed text and binary in a single message, the binary data can be corrupted. This can res

WebExtensions with the appropriate permissions can attach content scripts to Mozilla sites such as accounts.firefox.com

Memory safety bugs were reported in Firefox 59. Some of these bugs showed evidence of memory corruption and we presume t

Memory safety bugs were reported in Firefox 59, Firefox ESR 52.7, and Thunderbird 52.7. Some of these bugs showed eviden

A use-after-free vulnerability can occur in the compositor during certain graphics operations when a raw pointer is used

The libtremor library has the same flaw as CVE-2018-5146. This library is used by Firefox in place of libvorbis on Andro

An out of bounds memory write while processing Vorbis audio data was reported through the Pwn2Own contest. This vulnerab

Memory safety bugs were reported in Firefox ESR 52.6. These bugs showed evidence of memory corruption and we presume tha

An integer overflow can occur during conversion of text to some Unicode character sets due to an unchecked length parame

URLs using "javascript:" have the protocol removed when pasted into the addressbar to protect users from cross-site scri

If Media Capture and Streams API permission is requested from documents with "data:" or "blob:" URLs, the permission not

A vulnerability in the notifications Push API where notifications can be sent through service workers by web content wit

Image for moz-icons can be accessed through the "moz-icon:" protocol through script in web content even when otherwise p

A spoofing vulnerability can occur when a malicious site with an extremely long domain name is opened in an Android Cust

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