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Mozilla » Firefox : Security Vulnerabilities (CVSS score between 5 and 5.99)

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# CVE ID CWE ID # of Exploits Vulnerability Type(s) Publish Date Update Date Score Gained Access Level Access Complexity Authentication Conf. Integ. Avail.
51 CVE-2018-12395 Bypass 2019-02-28 2019-10-03
5.0
None Remote Low Not required Partial None None
By rewriting the Host: request headers using the webRequest API, a WebExtension can bypass domain restrictions through domain fronting. This would allow access to domains that share a host that are otherwise restricted. This vulnerability affects Firefox ESR < 60.3 and Firefox < 63.
52 CVE-2018-12393 787 Overflow 2019-02-28 2020-08-24
5.0
None Remote Low Not required None None Partial
A potential vulnerability was found in 32-bit builds where an integer overflow during the conversion of scripts to an internal UTF-16 representation could result in allocating a buffer too small for the conversion. This leads to a possible out-of-bounds write. *Note: 64-bit builds are not vulnerable to this issue.*. This vulnerability affects Firefox < 63, Firefox ESR < 60.3, and Thunderbird < 60.3.
53 CVE-2018-12386 704 Exec Code 2018-10-18 2018-12-06
5.8
None Remote Medium Not required Partial Partial None
A vulnerability in register allocation in JavaScript can lead to type confusion, allowing for an arbitrary read and write. This leads to remote code execution inside the sandboxed content process when triggered. This vulnerability affects Firefox ESR < 60.2.2 and Firefox < 62.0.3.
54 CVE-2018-10229 200 +Info 2018-05-04 2019-10-03
5.8
None Remote Medium Not required Partial Partial None
A hardware vulnerability in GPU memory modules allows attackers to accelerate micro-architectural attacks through the use of the JavaScript WebGL API.
55 CVE-2018-5182 200 +Info 2018-06-11 2018-08-03
5.0
None Remote Low Not required Partial None None
If a text string that happens to be a filename in the operating system's native format is dragged and dropped onto the addressbar the specified local file will be opened. This is contrary to policy and is what would happen if the string were the equivalent "file:" URL. This vulnerability affects Firefox < 60.
56 CVE-2018-5181 200 +Info 2018-06-11 2018-08-03
5.0
None Remote Low Not required Partial None None
If a URL using the "file:" protocol is dragged and dropped onto an open tab that is running in a different child process the tab will open a local file corresponding to the dropped URL, contrary to policy. One way to make the target tab open more reliably in a separate process is to open it with the "noopener" keyword. This vulnerability affects Firefox < 60.
57 CVE-2018-5180 416 2018-06-11 2018-08-03
5.0
None Remote Low Not required None None Partial
A use-after-free vulnerability can occur during WebGL operations. While this results in a potentially exploitable crash, the vulnerability is limited because the memory is freed and reused in a brief window of time during the freeing of the same callstack. This vulnerability affects Firefox < 60.
58 CVE-2018-5179 772 2019-04-26 2019-10-03
5.0
None Remote Low Not required Partial None None
A service worker can send the activate event on itself periodically which allows it to run perpetually, allowing it to monitor activity by users. Affects all versions prior to Firefox 60.
59 CVE-2018-5177 119 Overflow 2018-06-11 2018-08-03
5.0
None Remote Low Not required None None Partial
A vulnerability exists in XSLT during number formatting where a negative buffer size may be allocated in some instances, leading to a buffer overflow and crash if it occurs. This vulnerability affects Firefox < 60.
60 CVE-2018-5173 20 2018-06-11 2018-08-03
5.0
None Remote Low Not required None Partial None
The filename appearing in the "Downloads" panel improperly renders some Unicode characters, allowing for the file name to be spoofed. This can be used to obscure the file extension of potentially executable files from user view in the panel. Note: the dialog to open the file will show the full, correct filename and whether it is executable or not. This vulnerability affects Firefox < 60.
61 CVE-2018-5168 Bypass 2018-06-11 2020-08-24
5.0
None Remote Low Not required None Partial None
Sites can bypass security checks on permissions to install lightweight themes by manipulating the "baseURI" property of the theme element. This could allow a malicious site to install a theme without user interaction which could contain offensive or embarrassing images. This vulnerability affects Thunderbird < 52.8, Thunderbird ESR < 52.8, Firefox < 60, and Firefox ESR < 52.8.
62 CVE-2018-5166 269 Bypass 2018-06-11 2019-10-03
5.0
None Remote Low Not required Partial None None
WebExtensions can use request redirection and a "filterReponseData" filter to bypass host permission settings to redirect network traffic and access content from a host for which they do not have explicit user permission. This vulnerability affects Firefox < 60.
63 CVE-2018-5165 2018-06-11 2020-09-11
5.0
None Remote Low Not required None Partial None
In 32-bit versions of Firefox, the Adobe Flash plugin setting for "Enable Adobe Flash protected mode" is unchecked by default even though the Adobe Flash sandbox is actually enabled. The displayed state is the reverse of the true setting, resulting in user confusion. This could cause users to select this setting intending to activate it and inadvertently turn protections off. This vulnerability affects Firefox < 60.
64 CVE-2018-5163 281 Exec Code +Priv 2018-06-11 2019-10-03
5.1
None Remote High Not required Partial Partial Partial
If a malicious attacker has used another vulnerability to gain full control over a content process, they may be able to replace the alternate data resources stored in the JavaScript Start-up Bytecode Cache (JSBC) for other JavaScript code. If the parent process then runs this replaced code, the executed script would be run with the parent process' privileges, escaping the sandbox on content processes. This vulnerability affects Firefox < 60.
65 CVE-2018-5160 416 2018-06-11 2020-08-24
5.0
None Remote Low Not required None None Partial
WebRTC can use a "WrappedI420Buffer" pixel buffer but the owning image object can be freed while it is still in use. This can result in the WebRTC encoder using uninitialized memory, leading to a potentially exploitable crash. This vulnerability affects Firefox < 60.
66 CVE-2018-5157 200 Bypass +Info 2018-06-11 2019-03-13
5.0
None Remote Low Not required Partial None None
Same-origin protections for the PDF viewer can be bypassed, allowing a malicious site to intercept messages meant for the viewer. This could allow the site to retrieve PDF files restricted to viewing by an authenticated user on a third-party website. This vulnerability affects Firefox ESR < 52.8 and Firefox < 60.
67 CVE-2018-5153 125 2018-06-11 2018-08-14
5.0
None Remote Low Not required Partial None None
If websocket data is sent with mixed text and binary in a single message, the binary data can be corrupted. This can result in an out-of-bounds read with the read memory sent to the originating server in response. This vulnerability affects Firefox < 60.
68 CVE-2018-5142 2018-06-11 2019-10-03
5.0
None Remote Low Not required None Partial None
If Media Capture and Streams API permission is requested from documents with "data:" or "blob:" URLs, the permission notifications do not properly display the originating domain. The notification states "Unknown protocol" as the requestee, leading to user confusion about which site is asking for this permission. This vulnerability affects Firefox < 59.
69 CVE-2018-5140 200 +Info 2018-06-11 2018-08-02
5.0
None Remote Low Not required Partial None None
Image for moz-icons can be accessed through the "moz-icon:" protocol through script in web content even when otherwise prohibited. This could allow for information leakage of which applications are associated with specific MIME types by a malicious page. This vulnerability affects Firefox < 59.
70 CVE-2018-5137 200 +Info 2018-06-11 2018-08-10
5.0
None Remote Low Not required Partial None None
A legacy extension's non-contentaccessible, defined resources can be loaded by an arbitrary web page through script. This script does this by using a maliciously crafted path string to reference the resources. Note: this vulnerability does not affect WebExtensions. This vulnerability affects Firefox < 59.
71 CVE-2018-5136 20 Bypass 2018-06-11 2018-08-14
5.0
None Remote Low Not required Partial None None
A shared worker created from a "data:" URL in one tab can be shared by another tab with a different origin, bypassing the same-origin policy. This vulnerability affects Firefox < 59.
72 CVE-2018-5135 862 Bypass 2018-06-11 2019-10-03
5.0
None Remote Low Not required None Partial None
WebExtensions can bypass normal restrictions in some circumstances and use "browser.tabs.executeScript" to inject scripts into contexts where this should not be allowed, such as pages from other WebExtensions or unprivileged "about:" pages. This vulnerability affects Firefox < 59.
73 CVE-2018-5134 200 Bypass +Info 2018-06-11 2018-08-08
5.0
None Remote Low Not required Partial None None
WebExtensions may use "view-source:" URLs to view local "file:" URL content, as well as content stored in "about:cache", bypassing restrictions that only allow WebExtensions to view specific content. This vulnerability affects Firefox < 59.
74 CVE-2018-5129 787 Mem. Corr. 2018-06-11 2019-03-08
5.0
None Remote Low Not required None Partial None
A lack of parameter validation on IPC messages results in a potential out-of-bounds write through malformed IPC messages. This can potentially allow for sandbox escape through memory corruption in the parent process. This vulnerability affects Thunderbird < 52.7, Firefox ESR < 52.7, and Firefox < 59.
75 CVE-2018-5119 200 +Info 2018-06-11 2018-06-25
5.0
None Remote Low Not required Partial None None
The reader view will display cross-origin content when CORS headers are set to prohibit the loading of cross-origin content by a site. This could allow access to content that should be restricted in reader view. This vulnerability affects Firefox < 58.
76 CVE-2018-5118 200 +Info 2018-06-11 2018-06-25
5.0
None Remote Low Not required Partial None None
The screenshot images displayed in the Activity Stream page displayed when a new tab is opened is created from the meta tags of websites. An issue was discovered where the page could attempt to create these images through "file:" URLs from the local file system. This loading is blocked by the sandbox but could expose local data if combined with another attack that escapes sandbox protections. This vulnerability affects Firefox < 58.
77 CVE-2018-5117 2018-06-11 2019-10-03
5.0
None Remote Low Not required None Partial None
If right-to-left text is used in the addressbar with left-to-right alignment, it is possible in some circumstances to scroll this text to spoof the displayed URL. This issue could result in the wrong URL being displayed as a location, which can mislead users to believe they are on a different site than the one loaded. This vulnerability affects Thunderbird < 52.6, Firefox ESR < 52.6, and Firefox < 58.
78 CVE-2018-5115 200 +Info 2018-06-11 2018-06-25
5.0
None Remote Low Not required Partial None None
If an HTTP authentication prompt is triggered by a background network request from a page or extension, it is displayed over the currently loaded foreground page. Although the prompt contains the real domain making the request, this can result in user confusion about the originating site of the authentication request and may cause users to mistakenly send private credential information to a third party site. This vulnerability affects Firefox < 58.
79 CVE-2018-5114 200 +Info 2018-06-11 2018-06-25
5.0
None Remote Low Not required Partial None None
If an existing cookie is changed to be "HttpOnly" while a document is open, the original value remains accessible through script until that document is closed. Network requests correctly use the changed HttpOnly cookie. This vulnerability affects Firefox < 58.
80 CVE-2018-5113 862 2018-06-11 2019-10-03
5.0
None Remote Low Not required Partial None None
The "browser.identity.launchWebAuthFlow" function of WebExtensions is only allowed to load content over "https:" but this requirement was not properly enforced. This can potentially allow privileged pages to be loaded by the extension. This vulnerability affects Firefox < 58.
81 CVE-2018-5112 552 2018-06-11 2019-10-03
5.0
None Remote Low Not required Partial None None
Development Tools panels of an extension are required to load URLs for the panels as relative URLs from the extension manifest file but this requirement was not enforced in all instances. This could allow the development tools panel for the extension to load a URL that it should not be able to access, including potentially privileged pages. This vulnerability affects Firefox < 58.
82 CVE-2018-5109 346 2018-06-11 2018-06-25
5.0
None Remote Low Not required None Partial None
An audio capture session can started under an incorrect origin from the site making the capture request. Users are still prompted to allow the request but the prompt can display the wrong origin, leading to user confusion about which site is making the request to capture an audio stream. This vulnerability affects Firefox < 58.
83 CVE-2018-5107 59 Bypass 2018-06-11 2018-06-25
5.0
None Remote Low Not required Partial None None
The printing process can bypass local access protections to read files available through symlinks, bypassing local file restrictions. The printing process requires files in a specific format so arbitrary data cannot be read but it is possible that some local file information could be exposed. This vulnerability affects Firefox < 58.
84 CVE-2018-5106 200 +Info 2018-06-11 2018-06-25
5.0
None Remote Low Not required Partial None None
Style editor traffic in the Developer Tools can be routed through a service worker hosted on a third party website if a user selects error links when these tools are open. This can allow style editor information used within Developer Tools to leak cross-origin. This vulnerability affects Firefox < 58.
85 CVE-2018-5101 416 2018-06-11 2018-06-22
5.0
None Remote Low Not required None None Partial
A use-after-free vulnerability can occur when manipulating floating "first-letter" style elements, resulting in a potentially exploitable crash. This vulnerability affects Firefox < 58.
86 CVE-2018-5100 416 2018-06-11 2018-06-22
5.0
None Remote Low Not required None None Partial
A use-after-free vulnerability can occur when arguments passed to the "IsPotentiallyScrollable" function are freed while still in use by scripts. This results in a potentially exploitable crash. This vulnerability affects Firefox < 58.
87 CVE-2018-5094 119 Overflow 2018-06-11 2018-06-25
5.0
None Remote Low Not required None None Partial
A heap buffer overflow vulnerability may occur in WebAssembly when "shrinkElements" is called followed by garbage collection on memory that is now uninitialized. This results in a potentially exploitable crash. This vulnerability affects Firefox < 58.
88 CVE-2018-5093 119 Overflow 2018-06-11 2018-06-25
5.0
None Remote Low Not required None None Partial
A heap buffer overflow vulnerability may occur in WebAssembly during Memory/Table resizing, resulting in a potentially exploitable crash. This vulnerability affects Firefox < 58.
89 CVE-2017-7843 200 +Info 2018-06-11 2018-08-06
5.0
None Remote Low Not required Partial None None
When Private Browsing mode is used, it is possible for a web worker to write persistent data to IndexedDB and fingerprint a user uniquely. IndexedDB should not be available in Private Browsing mode and this stored data will persist across multiple private browsing mode sessions because it is not cleared when exiting. This vulnerability affects Firefox ESR < 52.5.2 and Firefox < 57.0.1.
90 CVE-2017-7842 200 +Info 2018-06-11 2018-06-25
5.0
None Remote Low Not required Partial None None
If a document's Referrer Policy attribute is set to "no-referrer" sometimes two network requests are made for "<link>" elements instead of one. One of these requests includes the referrer instead of respecting the set policy to not include a referrer on requests. This vulnerability affects Firefox < 57.
91 CVE-2017-7838 20 2018-06-11 2018-06-25
5.0
None Remote Low Not required None Partial None
Punycode format text will be displayed for entire qualified international domain names in some instances when a sub-domain triggers the punycode display instead of the primary domain being displayed in native script and the sub-domain only displaying as punycode. This could be used for limited spoofing attacks due to user confusion. This vulnerability affects Firefox < 57.
92 CVE-2017-7837 20 2018-06-11 2018-06-25
5.0
None Remote Low Not required None Partial None
SVG loaded through "<img>" tags can use "<meta>" tags within the SVG data to set cookies for that page. This vulnerability affects Firefox < 57.
93 CVE-2017-7833 20 2018-06-11 2018-06-25
5.0
None Remote Low Not required None Partial None
Some Arabic and Indic vowel marker characters can be combined with Latin characters in a domain name to eclipse the non-Latin character with some font sets on the addressbar. The non-Latin character will not be visible to most viewers. This allows for domain spoofing attacks because these combined domain names do not display as punycode. This vulnerability affects Firefox < 57.
94 CVE-2017-7832 20 2018-06-11 2018-06-25
5.0
None Remote Low Not required None Partial None
The combined, single character, version of the letter 'i' with any of the potential accents in unicode, such as acute or grave, can be spoofed in the addressbar by the dotless version of 'i' followed by the same accent as a second character with most font sets. This allows for domain spoofing attacks because these combined domain names do not display as punycode. This vulnerability affects Firefox < 57.
95 CVE-2017-7831 200 +Info 2018-06-11 2018-06-25
5.0
None Remote Low Not required Partial None None
A vulnerability where the security wrapper does not deny access to some exposed properties using the deprecated "_exposedProps_" mechanism on proxy objects. These properties should be explicitly unavailable to proxy objects. This vulnerability affects Firefox < 57.
96 CVE-2017-7822 2018-06-11 2019-10-03
5.0
None Remote Low Not required Partial None None
The AES-GCM implementation in WebCrypto API accepts 0-length IV when it should require a length of 1 according to the NIST Special Publication 800-38D specification. This might allow for the authentication key to be determined in some instances. This vulnerability affects Firefox < 56.
97 CVE-2017-7820 Bypass 2018-06-11 2019-10-03
5.0
None Remote Low Not required None Partial None
The "instanceof" operator can bypass the Xray wrapper mechanism. When called on web content from the browser itself or an extension the web content can provide its own result for that operator, possibly tricking the browser or extension into mishandling the element. This vulnerability affects Firefox < 56.
98 CVE-2017-7816 20 2018-06-11 2019-10-03
5.0
None Remote Low Not required Partial None None
WebExtensions could use popups and panels in the extension UI to load an "about:" privileged URL, violating security checks that disallow this behavior. This vulnerability affects Firefox < 56.
99 CVE-2017-7815 20 2018-06-11 2018-06-25
5.0
None Remote Low Not required None Partial None
On pages containing an iframe, the "data:" protocol can be used to create a modal dialog through Javascript that will have an arbitrary domains as the dialog's location, spoofing of the origin of the modal dialog from the user view. Note: This attack only affects installations with e10 multiprocess turned off. Installations with e10s turned on do not support the modal dialog functionality. This vulnerability affects Firefox < 56.
100 CVE-2017-7812 200 +Info 2018-06-11 2018-06-25
5.0
None Remote Low Not required Partial None None
If web content on a page is dragged onto portions of the browser UI, such as the tab bar, links can be opened that otherwise would not be allowed to open. This can allow malicious web content to open a locally stored file through "file:" URLs. This vulnerability affects Firefox < 56.
Total number of vulnerabilities : 345   Page : 1 2 (This Page)3 4 5 6 7
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