Updated 9 h ago

Vulnerability database

Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.

1,766exploited flaws on CISA’s list

35added in the last 30 days

570new WordPress flaws this week

391,310entries in the database

4,194 results · page 45 of 84

Jun 11, 2018An out of bounds memory write while processing Vorbis audio data was reported through the Pwn2Own contest.CVE-2018-5146 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgHigh 8.8
An out of bounds memory write while processing Vorbis audio data was reported through the Pwn2Own contest. This vulnerability affects Firefox < 59.0.1, Firefox ESR < 52.7.2, and Thunderbird < 52.7.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018Memory safety bugs were reported in Firefox ESR 52.6.CVE-2018-5145 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgCritical 9.8
Memory safety bugs were reported in Firefox ESR 52.6. These bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox ESR < 52.7 and Thunderbird < 52.7.
Product
Firefox ESR
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018An integer overflow can occur during conversion of text to some Unicode character sets due to an unchecked length parameter.CVE-2018-5144 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgHigh 7.3
An integer overflow can occur during conversion of text to some Unicode character sets due to an unchecked length parameter. This vulnerability affects Firefox ESR < 52.7 and Thunderbird < 52.7.
Product
Firefox ESR
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018URLs using "javascript:" have the protocol removed when pasted into the addressbar to protect users from cross-site scripting (XSS) attacks, but if a tab characCVE-2018-5143 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgMedium 6.1
URLs using "javascript:" have the protocol removed when pasted into the addressbar to protect users from cross-site scripting (XSS) attacks, but if a tab character is embedded in the "javascript:" URL the protocol is not removed and the script will execute. This could allow users to be socially engineered to run an XSS attack against themselves. This vulnerability affects Firefox < 59.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018If Media Capture and Streams API permission is requested from documents with "data:" or "blob:" URLs, the permission notifications do not properly display the oCVE-2018-5142 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgMedium 5.3
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.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018A vulnerability in the notifications Push API where notifications can be sent through service workers by web content without direct user interaction.CVE-2018-5141 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgHigh 8.2
A vulnerability in the notifications Push API where notifications can be sent through service workers by web content without direct user interaction. This could be used to open new tabs in a denial of service (DOS) attack or to display unwanted content from arbitrary URLs to users. This vulnerability affects Firefox < 59.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018Image for moz-icons can be accessed through the "moz-icon:" protocol through script in web content even when otherwise prohibited.CVE-2018-5140 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgMedium 5.3
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.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018A spoofing vulnerability can occur when a malicious site with an extremely long domain name is opened in an Android Custom Tab (a browser panel inside another aCVE-2018-5138 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgMedium 5.3
A spoofing vulnerability can occur when a malicious site with an extremely long domain name is opened in an Android Custom Tab (a browser panel inside another app) and the default browser is Firefox for Android. This could allow an attacker to spoof which page is actually loaded and in use. Note: this issue only affects Firefox for Android. Other versions and operating systems are unaffected. This vulnerability affects Firefox < 59.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018A legacy extension's non-contentaccessible, defined resources can be loaded by an arbitrary web page through script.CVE-2018-5137 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgHigh 7.5
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.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018A 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.CVE-2018-5136 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgHigh 7.5
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.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018WebExtensions can bypass normal restrictions in some circumstances and use "browser.tabs.executeScript" to inject scripts into contexts where this should not beCVE-2018-5135 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgHigh 7.5
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.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018WebExtensions may use "view-source:" URLs to view local "file:" URL content, as well as content stored in "about:cache", bypassing restrictions that only allow CVE-2018-5134 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgHigh 7.5
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.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018If the "app.support.baseURL" preference is changed by a malicious local program to contain HTML and script content, this content is not sanitized.CVE-2018-5133 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgMedium 6.5
If the "app.support.baseURL" preference is changed by a malicious local program to contain HTML and script content, this content is not sanitized. It will be executed if a user loads "chrome://browser/content/preferences/in-content/preferences.xul" directly in a tab and executes a search. This stored preference is also executed whenever an EME video player plugin displays a CDM-disabled message as a notification message. This vulnerability affects Firefox < 59.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018The Find API for WebExtensions can search some privileged pages, such as "about:debugging", if these pages are open in a tab.CVE-2018-5132 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgMedium 6.5
The Find API for WebExtensions can search some privileged pages, such as "about:debugging", if these pages are open in a tab. This could allow a malicious WebExtension to search for otherwise protected data if a user has it open. This vulnerability affects Firefox < 59.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018Under certain circumstances the "fetch()" API can return transient local copies of resources that were sent with a "no-store" or "no-cache" cache header insteadCVE-2018-5131 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgMedium 5.9
Under certain circumstances the "fetch()" API can return transient local copies of resources that were sent with a "no-store" or "no-cache" cache header instead of downloading a copy from the network as it should. This can result in previously stored, locally cached data of a website being accessible to users if they share a common profile while browsing. This vulnerability affects Firefox ESR < 52.7 and Firefox < 59.
Product
Firefox ESR
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018When packets with a mismatched RTP payload type are sent in WebRTC connections, in some circumstances a potentially exploitable crash is triggered.CVE-2018-5130 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgHigh 8.8
When packets with a mismatched RTP payload type are sent in WebRTC connections, in some circumstances a potentially exploitable crash is triggered. This vulnerability affects Firefox ESR < 52.7 and Firefox < 59.
Product
Firefox ESR
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018A lack of parameter validation on IPC messages results in a potential out-of-bounds write through malformed IPC messages.CVE-2018-5129 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgHigh 8.6
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.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018A use-after-free vulnerability can occur when manipulating elements, events, and selection ranges during editor operations.CVE-2018-5128 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgCritical 9.8
A use-after-free vulnerability can occur when manipulating elements, events, and selection ranges during editor operations. This results in a potentially exploitable crash. This vulnerability affects Firefox < 59.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018A buffer overflow can occur when manipulating the SVG "animatedPathSegList" through script.CVE-2018-5127 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgHigh 8.8
A buffer overflow can occur when manipulating the SVG "animatedPathSegList" through script. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 52.7, Firefox ESR < 52.7, and Firefox < 59.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018Memory safety bugs were reported in Firefox 58.CVE-2018-5126 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgCritical 9.8
Memory safety bugs were reported in Firefox 58. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox < 59.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018Memory safety bugs were reported in Firefox 58 and Firefox ESR 52.6.CVE-2018-5125 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgHigh 8.8
Memory safety bugs were reported in Firefox 58 and Firefox ESR 52.6. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Thunderbird < 52.7, Firefox ESR < 52.7, and Firefox < 59.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018A potential integer overflow in the "DoCrypt" function of WebCrypto was identified.CVE-2018-5122 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgCritical 9.8
A potential integer overflow in the "DoCrypt" function of WebCrypto was identified. If a means was found of exploiting it, it could result in an out-of-bounds write. This vulnerability affects Firefox < 58.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018Low descenders on some Tibetan characters in several fonts on OS X are clipped when rendered in the addressbar.CVE-2018-5121 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgMedium 5.3
Low descenders on some Tibetan characters in several fonts on OS X are clipped when rendered in the addressbar. When used as part of an Internationalized Domain Name (IDN) this can be used for domain name spoofing attacks. Note: This attack only affects OS X operating systems. Other operating systems are unaffected. This vulnerability affects Firefox < 58.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018The reader view will display cross-origin content when CORS headers are set to prohibit the loading of cross-origin content by a site.CVE-2018-5119 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgMedium 5.3
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.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018The screenshot images displayed in the Activity Stream page displayed when a new tab is opened is created from the meta tags of websites.CVE-2018-5118 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgMedium 5.3
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.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018If 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 URCVE-2018-5117 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgMedium 5.3
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.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018WebExtensions with the "ActiveTab" permission are able to access frames hosted within the active tab even if the frames are cross-origin.CVE-2018-5116 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgCritical 9.8
WebExtensions with the "ActiveTab" permission are able to access frames hosted within the active tab even if the frames are cross-origin. Malicious extensions can inject frames from arbitrary origins into the loaded page and then interact with them, bypassing same-origin user expectations with this permission. This vulnerability affects Firefox < 58.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018If an HTTP authentication prompt is triggered by a background network request from a page or extension, it is displayed over the currently loaded foreground pagCVE-2018-5115 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgHigh 7.5
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.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018If 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.CVE-2018-5114 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgMedium 5.3
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.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018The "browser.identity.launchWebAuthFlow" function of WebExtensions is only allowed to load content over "https:" but this requirement was not properly enforced.CVE-2018-5113 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgHigh 7.5
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.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018Development 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 notCVE-2018-5112 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgHigh 7.5
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.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018When the text of a specially formatted URL is dragged to the addressbar from page content, the displayed URL can be spoofed to show a different site than the onCVE-2018-5111 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgMedium 6.5
When the text of a specially formatted URL is dragged to the addressbar from page content, the displayed URL can be spoofed to show a different site than the one loaded. This allows for phishing attacks where a malicious page can spoof the identify of another site. This vulnerability affects Firefox < 58.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018If cursor visibility is toggled by script using from 'none' to an image and back through script, the cursor will be rendered temporarily invisible within FirefoCVE-2018-5110 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgMedium 5.3
If cursor visibility is toggled by script using from 'none' to an image and back through script, the cursor will be rendered temporarily invisible within Firefox. Note: This vulnerability only affects OS X. Other operating systems are not affected. This vulnerability affects Firefox < 58.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018An audio capture session can started under an incorrect origin from the site making the capture request.CVE-2018-5109 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgMedium 5.3
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.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018A Blob URL can violate origin attribute segregation, allowing it to be accessed from a private browsing tab and for data to be passed between the private browsiCVE-2018-5108 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgMedium 4.3
A Blob URL can violate origin attribute segregation, allowing it to be accessed from a private browsing tab and for data to be passed between the private browsing tab and a normal tab. This could allow for the leaking of private information specific to the private browsing context. This issue is mitigated by the requirement that the user enter the Blob URL manually in order for the access violation to occur. This vulnerability affects Firefox < 58.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018The printing process can bypass local access protections to read files available through symlinks, bypassing local file restrictions.CVE-2018-5107 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgMedium 5.3
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.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018Style 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 toolCVE-2018-5106 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgMedium 5.3
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.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018WebExtensions can bypass user prompts to first save and then open an arbitrarily downloaded file.CVE-2018-5105 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgHigh 7.8
WebExtensions can bypass user prompts to first save and then open an arbitrarily downloaded file. This can result in an executable file running with local user privileges without explicit user consent. This vulnerability affects Firefox < 58.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018A use-after-free vulnerability can occur during font face manipulation when a font face is freed while still in use, resulting in a potentially exploitable crasCVE-2018-5104 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgCritical 9.8
A use-after-free vulnerability can occur during font face manipulation when a font face is freed while still in use, resulting in a potentially exploitable crash. This vulnerability affects Thunderbird < 52.6, Firefox ESR < 52.6, and Firefox < 58.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018A use-after-free vulnerability can occur during mouse event handling due to issues with multiprocess support.CVE-2018-5103 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgCritical 9.8
A use-after-free vulnerability can occur during mouse event handling due to issues with multiprocess support. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 52.6, Firefox ESR < 52.6, and Firefox < 58.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018A use-after-free vulnerability can occur when manipulating HTML media elements with media streams, resulting in a potentially exploitable crash.CVE-2018-5102 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgCritical 9.8
A use-after-free vulnerability can occur when manipulating HTML media elements with media streams, resulting in a potentially exploitable crash. This vulnerability affects Thunderbird < 52.6, Firefox ESR < 52.6, and Firefox < 58.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018A use-after-free vulnerability can occur when manipulating floating "first-letter" style elements, resulting in a potentially exploitable crash.CVE-2018-5101 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgHigh 7.5
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.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018A use-after-free vulnerability can occur when arguments passed to the "IsPotentiallyScrollable" function are freed while still in use by scripts.CVE-2018-5100 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgHigh 7.5
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.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018A use-after-free vulnerability can occur when the widget listener is holding strong references to browser objects that have previously been freed, resulting in CVE-2018-5099 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgCritical 9.8
A use-after-free vulnerability can occur when the widget listener is holding strong references to browser objects that have previously been freed, resulting in a potentially exploitable crash when these references are used. This vulnerability affects Thunderbird < 52.6, Firefox ESR < 52.6, and Firefox < 58.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018A use-after-free vulnerability can occur when form input elements, focus, and selections are manipulated by script content.CVE-2018-5098 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgCritical 9.8
A use-after-free vulnerability can occur when form input elements, focus, and selections are manipulated by script content. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 52.6, Firefox ESR < 52.6, and Firefox < 58.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018A use-after-free vulnerability can occur during XSL transformations when the source document for the transformation is manipulated by script content during the CVE-2018-5097 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgCritical 9.8
A use-after-free vulnerability can occur during XSL transformations when the source document for the transformation is manipulated by script content during the transformation. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 52.6, Firefox ESR < 52.6, and Firefox < 58.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018A use-after-free vulnerability can occur while editing events in form elements on a page, resulting in a potentially exploitable crash.CVE-2018-5096 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgCritical 9.8
A use-after-free vulnerability can occur while editing events in form elements on a page, resulting in a potentially exploitable crash. This vulnerability affects Firefox ESR < 52.6 and Thunderbird < 52.6.
Product
Firefox ESR
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com access.redhat.com
Jun 11, 2018An integer overflow vulnerability in the Skia library when allocating memory for edge builders on some systems with at least 8 GB of RAM.CVE-2018-5095 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgCritical 9.8
An integer overflow vulnerability in the Skia library when allocating memory for edge builders on some systems with at least 8 GB of RAM. This results in the use of uninitialized memory, resulting in a potentially exploitable crash. This vulnerability affects Thunderbird < 52.6, Firefox ESR < 52.6, and Firefox < 58.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018A heap buffer overflow vulnerability may occur in WebAssembly when "shrinkElements" is called followed by garbage collection on memory that is now uninitializedCVE-2018-5094 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgHigh 7.5
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.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com
Jun 11, 2018A heap buffer overflow vulnerability may occur in WebAssembly during Memory/Table resizing, resulting in a potentially exploitable crash.CVE-2018-5093 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgHigh 7.5
A heap buffer overflow vulnerability may occur in WebAssembly during Memory/Table resizing, resulting in a potentially exploitable crash. This vulnerability affects Firefox < 58.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com securitytracker.com

Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.

Weekly security brief

The flaws that hit local websites, every Friday.

One short email: what got exploited this week, which WordPress plugins broke, and what to check. Unsubscribe in one click.

Vulnerability database

The flaws that hit local websites, every Friday.

Tell us what you're building.