Mozilla Firefox vulnerabilities

CVE-2022-34474 [MEDIUM] CWE-601 CVE-2022-34474: Even when an iframe was sandboxed with <code>allow-top-navigation-by-user-activation</code>, if it r Even when an iframe was sandboxed with allow-top-navigation-by-user-activation, if it received a redirect header to an external protocol the browser would process the redirect and prompt the user as appropriate. This vulnerability affects Firefox < 102.

CVE-2025-10536 [MEDIUM] CWE-200 CVE-2025-10536: Information disclosure in the Networking: Cache component. This vulnerability was fixed in Firefox 1 Information disclosure in the Networking: Cache component. This vulnerability was fixed in Firefox 143, Firefox ESR 140.3, Thunderbird 143, and Thunderbird 140.3.

CVE-2022-34475 [MEDIUM] CWE-79 CVE-2022-34475: SVG <code>&lt;use&gt;</code> tags that referenced a same-origin document could have resulted in scri SVG tags that referenced a same-origin document could have resulted in script execution if attacker input was sanitized via the HTML Sanitizer API. This would have required the attacker to reference a same-origin JavaScript file containing the script to be executed. This vulnerability affects Firefox < 102.

CVE-2018-5117 [MEDIUM] CVE-2018-5117: If right-to-left text is used in the addressbar with left-to-right alignment, it is possible in some 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 <

CVE-2018-5168 [MEDIUM] CVE-2018-5168: Sites can bypass security checks on permissions to install lightweight themes by manipulating the "b 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 F

CVE-2024-8386 [MEDIUM] CWE-601 CVE-2024-8386: If a site had been granted the permission to open popup windows, it could cause Select elements to a If a site had been granted the permission to open popup windows, it could cause Select elements to appear on top of another site to perform a spoofing attack. This vulnerability affects Firefox < 130, Firefox ESR < 128.2, and Thunderbird < 128.2.

CVE-2022-36316 [MEDIUM] CWE-601 CVE-2022-36316: When using the Performance API, an attacker was able to notice subtle differences between Performanc When using the Performance API, an attacker was able to notice subtle differences between PerformanceEntries and thus learn whether the target URL had been subject to a redirect. This vulnerability affects Firefox < 103.

CVE-2025-11712 [MEDIUM] CWE-116 CVE-2025-11712: A malicious page could have used the type attribute of an OBJECT tag to override the default browser A malicious page could have used the type attribute of an OBJECT tag to override the default browser behavior when encountering a web resource served without a content-type. This could have contributed to an XSS on a site that unsafely serves files without a content-type header. This vulnerability was fixed in Firefox 144, Firefox ESR 140.4, Thunder

CVE-2025-6430 [MEDIUM] CWE-79 CVE-2025-6430: When a file download is specified via the `Content-Disposition` header, that directive would be igno When a file download is specified via the `Content-Disposition` header, that directive would be ignored if the file was included via a ` ` or ` ` tag, potentially making a website vulnerable to a cross-site scripting attack. This vulnerability was fixed in Firefox 140, Firefox ESR 128.12, Thunderbird 140, and Thunderbird 128.12.

CVE-2014-1491 [MEDIUM] CWE-326 CVE-2014-1491: Mozilla Network Security Services (NSS) before 3.15.4, as used in Mozilla Firefox before 27.0, Firef Mozilla Network Security Services (NSS) before 3.15.4, as used in Mozilla Firefox before 27.0, Firefox ESR 24.x before 24.3, Thunderbird before 24.3, SeaMonkey before 2.24, and other products, does not properly restrict public values in Diffie-Hellman key exchanges, which makes it easier for remote attackers to bypass cryptographic protection mechanis

CVE-2016-2809 [MEDIUM] CWE-264 CVE-2016-2809: The Mozilla Maintenance Service updater in Mozilla Firefox before 46.0 on Windows allows user-assist The Mozilla Maintenance Service updater in Mozilla Firefox before 46.0 on Windows allows user-assisted remote attackers to delete arbitrary files by leveraging certain local file execution.

CVE-2019-11717 [MEDIUM] CWE-116 CVE-2019-11717: A vulnerability exists where the caret ("^") character is improperly escaped constructing some URIs A vulnerability exists where the caret ("^") character is improperly escaped constructing some URIs due to it being used as a separator, allowing for possible spoofing of origin attributes. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8.

CVE-2014-1583 [MEDIUM] CVE-2014-1583: The Alarm API in Mozilla Firefox before 33.0 and Firefox ESR 31.x before 31.2 does not properly rest The Alarm API in Mozilla Firefox before 33.0 and Firefox ESR 31.x before 31.2 does not properly restrict toJSON calls, which allows remote attackers to bypass the Same Origin Policy via crafted API calls that access sensitive information within the JSON data of an alarm.

CVE-2006-6497 [MEDIUM] CVE-2006-6497: Multiple unspecified vulnerabilities in the layout engine for Mozilla Firefox 2.x before 2.0.0.1, 1. Multiple unspecified vulnerabilities in the layout engine for Mozilla Firefox 2.x before 2.0.0.1, 1.5.x before 1.5.0.9, Thunderbird before 1.5.0.9, and SeaMonkey before 1.0.7 allow remote attackers to cause a denial of service (memory corruption and crash) and possibly execute arbitrary code via unknown attack vectors.

CVE-2006-6498 [MEDIUM] CVE-2006-6498: Multiple unspecified vulnerabilities in the JavaScript engine for Mozilla Firefox 2.x before 2.0.0.1 Multiple unspecified vulnerabilities in the JavaScript engine for Mozilla Firefox 2.x before 2.0.0.1, 1.5.x before 1.5.0.9, Thunderbird before 1.5.0.9, SeaMonkey before 1.0.7, and Mozilla 1.7 and probably earlier on Solaris, allow remote attackers to cause a denial of service (memory corruption and crash) and possibly execute arbitrary code via unknown impact

CVE-2017-7764 [MEDIUM] CWE-20 CVE-2017-7764: Characters from the "Canadian Syllabics" unicode block can be mixed with characters from other unico Characters from the "Canadian Syllabics" unicode block can be mixed with characters from other unicode blocks in the addressbar instead of being rendered as their raw "punycode" form, allowing for domain name spoofing attacks through character confusion. The current Unicode standard allows characters from "Aspirational Use Scripts" such as Canadian Syl

CVE-2009-0355 [MEDIUM] CWE-264 CVE-2009-0355: components/sessionstore/src/nsSessionStore.js in Mozilla Firefox before 3.0.6 does not block changes components/sessionstore/src/nsSessionStore.js in Mozilla Firefox before 3.0.6 does not block changes of INPUT elements to type="file" during tab restoration, which allows user-assisted remote attackers to read arbitrary files on a client machine via a crafted INPUT element.

CVE-2018-12403 [MEDIUM] CVE-2018-12403: If a site is loaded over a HTTPS connection but loads a favicon resource over HTTP, the mixed conten If a site is loaded over a HTTPS connection but loads a favicon resource over HTTP, the mixed content warning is not displayed to users. This vulnerability affects Firefox < 63.

CVE-2019-17021 [MEDIUM] CWE-362 CVE-2019-17021: During the initialization of a new content process, a race condition occurs that can allow a content During the initialization of a new content process, a race condition occurs that can allow a content process to disclose heap addresses from the parent process. *Note: this issue only occurs on Windows. Other operating systems are unaffected.*. This vulnerability affects Firefox ESR < 68.4 and Firefox < 72.

CVE-2018-12381 [MEDIUM] CWE-610 CVE-2018-12381: Manually dragging and dropping an Outlook email message into the browser will trigger a page navigat Manually dragging and dropping an Outlook email message into the browser will trigger a page navigation when the message's mail columns are incorrectly interpreted as a URL. *Note: this issue only affects Windows operating systems with Outlook installed. Other operating systems are not affected.*. This vulnerability affects Firefox ESR < 60.2 and Fi