Vendor
Mozilla
2,559 known vulnerabilities.
Products
507 results · Clear filters · Feed
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Medium 6.1
A missing delay in directory upload UI could have made it possible for an attacker to trick a user into granting permis…
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Medium 5.3
By checking the result of calls to `window.open` with specifically set protocol handlers, an attacker could determine i…
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Medium 6.1
An attacker could, via a specially crafted multipart response, execute arbitrary JavaScript under the `resource://devto…
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Medium 6.1
Under certain conditions, an attacker with the ability to redirect users to a malicious site via an open redirect on a …
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Medium 6.5
When aborting the verification of an OTR chat session, an attacker could have caused a use-after-free bug leading to a …
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Medium 4.7
Websites could utilize Javascript links to spoof URL addresses in the Focus navigation bar This vulnerability affects F…
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Medium 4.3
Multiple prompts and panels from both Firefox and the Android OS could be used to obscure the notification announcing t…
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Medium 6.1
If a site had been granted the permission to open popup windows, it could cause Select elements to appear on top of ano…
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Medium 6.1
The contextual menu for links could provide an opportunity for cross-site scripting attacks This vulnerability affects …
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Medium 6.1
Long pressing on a download link could potentially provide a means for cross-site scripting This vulnerability affects …
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Medium 6.3
A select option could partially obscure security prompts. This could be used by a malicious site to trick a user into g…
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Medium 6.3
Calling `PK11_Encrypt()` in NSS using CKM_CHACHA20 and the same buffer for input and output can result in plaintext on …
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Medium 6.1
Firefox adds web-compatibility shims in place of some tracking scripts blocked by Enhanced Tracking Protection. On a si…
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Medium 6.5
Select options could obscure the fullscreen notification dialog. This could be used by a malicious site to perform a sp…
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Medium 5.5
Incorrect listing of stack frames
The frame iterator could get stuck in a loop when encountering certain wasm frames leading to incorrect stack traces. This vulnerability affects Firefox < 128 and Thunderbird < 128.
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Medium 5.3
CSP violation leakage when using devtools
CSP violations generated links in the console tab of the developer tools, pointing to the violating resource. This caused a DNS prefetch which leaked that a CSP violation happened. This vulnerability affects Firefox < 128 and Thunderbird < 128.
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Medium 4.3
Incorrect listing of stack frames
The frame iterator could get stuck in a loop when encountering certain wasm frames leading to incorrect stack traces. This vulnerability affects Firefox < 128 and Thunderbird < 128.
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Medium 6.3
Form validation popups could block exiting full-screen mode
Form validation popups could capture escape key presses. Therefore, spamming form validation messages could be used to prevent users from exiting full-screen mode. This vulnerability affects Firefox < 128 and Thunderbird < 128.
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Medium 4.3
Cursor could be moved out of the viewport using pointerlock.
It was possible to move the cursor using pointerlock from an iframe. This allowed moving the cursor outside of the viewport and the Firefox window. This vulnerability affects Firefox < 128 and Thunderbird < 128.
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Medium 4.7
Race condition in permission assignment
A race condition could lead to a cross-origin container obtaining permissions of the top-level origin. This vulnerability affects Firefox < 128, Firefox ESR < 115.13, Thunderbird < 115.13, and Thunderbird < 128.
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Medium 6.3
Memory corruption in WebGL API
Due to large allocation checks in Angle for GLSL shaders being too lenient an out-of-bounds access could occur when allocating more than 8192 ints in private shader memory on macOS. This vulnerability affects Firefox < 128, Firefox ESR < 115.13, Thunderbird <…
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Medium 6.5
When browsing private tabs, some data related to location history or webpage thumbnails could be persisted incorrectly …
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Medium 4.3
In certain scenarios a malicious website could attempt to display a fake location URL bar which could mislead users as …
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Medium 5.4
By manipulating the fullscreen feature while opening a data-list, an attacker could have overlaid a text box over the a…
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Medium 4.3
In addition to detecting when a user was taking a screenshot (XXX), a website was able to overlay the 'My Shots' button…
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Medium 5.3
A website was able to detect when a user took a screenshot of a page using the built-in Screenshot functionality in Fir…
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Medium 5.3
If a specific sequence of actions is performed when opening a new tab, the triggering principal associated with the new…
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Medium 4.7
By tricking the browser with a `X-Frame-Options` header, a sandboxed iframe could have presented a button that, if clic…
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Medium 6.5
On Windows 10, when using the 'Save As' functionality, an attacker could have tricked the browser into saving the file …
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Medium 6.1
Offscreen Canvas did not properly track cross-origin tainting, which could be used to access image data from another si…
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Medium 4.3
By monitoring the time certain operations take, an attacker could have guessed which external protocol handlers were fu…
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Medium 4.4
The file scheme of URLs would be hidden, resulting in potential spoofing of a website's address in the location bar Thi…
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Medium 5.9
An iterator stop condition was missing when handling WASM code in the built-in profiler, potentially leading to invalid…
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Medium 6.5
The `ShmemCharMapHashEntry()` code was susceptible to potentially undefined behavior by bypassing the move semantics fo…
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Medium 5.9
An HTTP digest authentication nonce value was generated using `rand()` which could lead to predictable values. This vul…
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Medium 4.3
Different techniques existed to obscure the fullscreen notification in Firefox for Android. These could have led to pot…
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Medium 5.9
When importing resources using Web Workers, error messages would distinguish the difference between `application/javasc…
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Medium 6.1
A bug in popup notifications' interaction with WebAuthn made it easier for an attacker to trick a user into granting pe…
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Medium 5.6
PDF.js vulnerable to arbitrary JavaScript execution upon opening a malicious PDF
A type check was missing when handling fonts in PDF.js, which would allow arbitrary JavaScript execution in the PDF.js context. This vulnerability affects Firefox < 126, Firefox ESR < 115.11, and Thunderbird < 115.11.
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Medium 4.3
If the `browser.privatebrowsing.autostart` preference is enabled, IndexedDB files were not properly deleted when the wi…