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  • CPE Product Version: cpe:/a:mozilla:firefox:1.0:preview_release
There are 1,662 matching records.
Displaying matches 1 through 20.
Vuln ID Summary CVSS Severity
CVE-2020-15662

A rogue webpage could override the injected WKUserScript used by the download feature, this exploit could result in the user downloading an unintended file. This vulnerability affects Firefox for iOS < 28.

Published: August 10, 2020; 2:15:12 PM -0400
V3.1: 6.5 MEDIUM
V2.0: 4.3 MEDIUM
CVE-2020-15661

A rogue webpage could override the injected WKUserScript used by the logins autofill, this exploit could result in leaking a password for the current domain. This vulnerability affects Firefox for iOS < 28.

Published: August 10, 2020; 2:15:12 PM -0400
V3.1: 6.5 MEDIUM
V2.0: 4.3 MEDIUM
CVE-2020-15658

The code for downloading files did not properly take care of special characters, which led to an attacker being able to cut off the file ending at an earlier position, leading to a different file type being downloaded than shown in the dialog. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1.

Published: August 10, 2020; 2:15:12 PM -0400
V3.1: 6.5 MEDIUM
V2.0: 4.3 MEDIUM
CVE-2020-15657

Firefox could be made to load attacker-supplied DLL files from the installation directory. This required an attacker that is already capable of placing files in the installation directory. *Note: This issue only affected Windows operating systems. Other operating systems are unaffected.*. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1.

Published: August 10, 2020; 2:15:12 PM -0400
V3.1: 7.8 HIGH
V2.0: 6.9 MEDIUM
CVE-2020-15656

JIT optimizations involving the Javascript arguments object could confuse later optimizations. This risk was already mitigated by various precautions in the code, resulting in this bug rated at only moderate severity. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1.

Published: August 10, 2020; 2:15:12 PM -0400
V3.1: 8.8 HIGH
V2.0: 9.3 HIGH
CVE-2020-15655

A redirected HTTP request which is observed or modified through a web extension could bypass existing CORS checks, leading to potential disclosure of cross-origin information. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1.

Published: August 10, 2020; 2:15:12 PM -0400
V3.1: 6.5 MEDIUM
V2.0: 4.3 MEDIUM
CVE-2020-15654

When in an endless loop, a website specifying a custom cursor using CSS could make it look like the user is interacting with the user interface, when they are not. This could lead to a perceived broken state, especially when interactions with existing browser dialogs and warnings do not work. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1.

Published: August 10, 2020; 2:15:12 PM -0400
V3.1: 6.5 MEDIUM
V2.0: 4.3 MEDIUM
CVE-2020-15653

An iframe sandbox element with the allow-popups flag could be bypassed when using noopener links. This could have led to security issues for websites relying on sandbox configurations that allowed popups and hosted arbitrary content. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1.

Published: August 10, 2020; 2:15:12 PM -0400
V3.1: 6.5 MEDIUM
V2.0: 4.3 MEDIUM
CVE-2020-15652

By observing the stack trace for JavaScript errors in web workers, it was possible to leak the result of a cross-origin redirect. This applied only to content that can be parsed as script. This vulnerability affects Firefox < 79, Firefox ESR < 68.11, Firefox ESR < 78.1, Thunderbird < 68.11, and Thunderbird < 78.1.

Published: August 10, 2020; 2:15:12 PM -0400
V3.1: 6.5 MEDIUM
V2.0: 4.3 MEDIUM
CVE-2020-15651

A unicode RTL order character in the downloaded file name can be used to change the file's name during the download UI flow to change the file extension. This vulnerability affects Firefox for iOS < 28.

Published: August 10, 2020; 2:15:12 PM -0400
V3.1: 4.3 MEDIUM
V2.0: 4.3 MEDIUM
CVE-2020-15648

Using object or embed tags, it was possible to frame other websites, even if they disallowed framing using the X-Frame-Options header. This vulnerability affects Thunderbird < 78 and Firefox < 78.0.2.

Published: August 10, 2020; 2:15:12 PM -0400
V3.1: 6.5 MEDIUM
V2.0: 4.3 MEDIUM
CVE-2020-15647

A Content Provider in Firefox for Android allowed local files accessible by the browser to be read by a remote webpage, leading to sensitive data disclosure, including cookies for other origins. This vulnerability affects Firefox for < Android.

Published: August 10, 2020; 2:15:11 PM -0400
V3.1: 7.4 HIGH
V2.0: 5.0 MEDIUM
CVE-2020-12426

Mozilla developers and community members reported memory safety bugs present in Firefox 77. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 78.

Published: July 09, 2020; 11:15:12 AM -0400
V3.1: 8.8 HIGH
V2.0: 9.3 HIGH
CVE-2020-12425

Due to confusion processing a hyphen character in Date.parse(), a one-byte out of bounds read could have occurred, leading to potential information disclosure. This vulnerability affects Firefox < 78.

Published: July 09, 2020; 11:15:12 AM -0400
V3.1: 6.5 MEDIUM
V2.0: 4.3 MEDIUM
CVE-2020-12423

When the Windows DLL "webauthn.dll" was missing from the Operating System, and a malicious one was placed in a folder in the user's %PATH%, Firefox may have loaded the DLL, leading to arbitrary code execution. *Note: This issue only affects the Windows operating system; other operating systems are unaffected.* This vulnerability affects Firefox < 78.

Published: July 09, 2020; 11:15:12 AM -0400
V3.1: 7.8 HIGH
V2.0: 6.9 MEDIUM
CVE-2020-12422

In non-standard configurations, a JPEG image created by JavaScript could have caused an internal variable to overflow, resulting in an out of bounds write, memory corruption, and a potentially exploitable crash. This vulnerability affects Firefox < 78.

Published: July 09, 2020; 11:15:12 AM -0400
V3.1: 8.8 HIGH
V2.0: 7.6 HIGH
CVE-2020-12421

When performing add-on updates, certificate chains terminating in non-built-in-roots were rejected (even if they were legitimately added by an administrator.) This could have caused add-ons to become out-of-date silently without notification to the user. This vulnerability affects Firefox ESR < 68.10, Firefox < 78, and Thunderbird < 68.10.0.

Published: July 09, 2020; 11:15:12 AM -0400
V3.1: 6.5 MEDIUM
V2.0: 4.3 MEDIUM
CVE-2020-12420

When trying to connect to a STUN server, a race condition could have caused a use-after-free of a pointer, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox ESR < 68.10, Firefox < 78, and Thunderbird < 68.10.0.

Published: July 09, 2020; 11:15:11 AM -0400
V3.1: 8.8 HIGH
V2.0: 9.3 HIGH
CVE-2020-12419

When processing callbacks that occurred during window flushing in the parent process, the associated window may die; causing a use-after-free condition. This could have led to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox ESR < 68.10, Firefox < 78, and Thunderbird < 68.10.0.

Published: July 09, 2020; 11:15:11 AM -0400
V3.1: 8.8 HIGH
V2.0: 9.3 HIGH
CVE-2020-12418

Manipulating individual parts of a URL object could have caused an out-of-bounds read, leaking process memory to malicious JavaScript. This vulnerability affects Firefox ESR < 68.10, Firefox < 78, and Thunderbird < 68.10.0.

Published: July 09, 2020; 11:15:11 AM -0400
V3.1: 6.5 MEDIUM
V2.0: 4.3 MEDIUM