Vulnerabilities (CVE)

Filtered by vendor Mozilla Subscribe
Total 3821 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2023-32210 1 Mozilla 1 Firefox 2026-06-17 N/A 6.5 MEDIUM
Documents were incorrectly assuming an ordering of principal objects when ensuring we were loading an appropriately privileged principal. In certain circumstances it might have been possible to cause a document to be loaded with a higher privileged principal than intended. This vulnerability affects Firefox < 113.
CVE-2023-32209 1 Mozilla 1 Firefox 2026-06-17 N/A 7.5 HIGH
A maliciously crafted favicon could have led to an out of memory crash. This vulnerability affects Firefox < 113.
CVE-2023-32208 1 Mozilla 1 Firefox 2026-06-17 N/A 5.3 MEDIUM
Service workers could reveal script base URL due to dynamic `import()`. This vulnerability affects Firefox < 113.
CVE-2023-32207 1 Mozilla 3 Firefox, Firefox Esr, Thunderbird 2026-06-17 N/A 8.8 HIGH
A missing delay in popup notifications could have made it possible for an attacker to trick a user into granting permissions. This vulnerability affects Firefox < 113, Firefox ESR < 102.11, and Thunderbird < 102.11.
CVE-2023-32206 1 Mozilla 3 Firefox, Firefox Esr, Thunderbird 2026-06-17 N/A 6.5 MEDIUM
An out-of-bound read could have led to a crash in the RLBox Expat driver. This vulnerability affects Firefox < 113, Firefox ESR < 102.11, and Thunderbird < 102.11.
CVE-2023-32205 1 Mozilla 3 Firefox, Firefox Esr, Thunderbird 2026-06-17 N/A 4.3 MEDIUM
In multiple cases browser prompts could have been obscured by popups controlled by content. These could have led to potential user confusion and spoofing attacks. This vulnerability affects Firefox < 113, Firefox ESR < 102.11, and Thunderbird < 102.11.
CVE-2023-2142 1 Mozilla 1 Nunjucks 2026-06-17 N/A 6.1 MEDIUM
In Nunjucks versions prior to version 3.2.4, it was possible to bypass the restrictions which are provided by the autoescape functionality. If there are two user-controlled parameters on the same line used in the views, it was possible to inject cross site scripting payloads using the backslash \ character.
CVE-2023-29547 1 Mozilla 3 Firefox, Firefox Esr, Focus 2026-06-17 N/A 6.5 MEDIUM
When a secure cookie existed in the Firefox cookie jar an insecure cookie for the same domain could have been created, when it should have silently failed. This could have led to a desynchronization in expected results when reading from the secure cookie. This vulnerability affects Firefox for Android < 112, Firefox < 112, and Focus for Android < 112.
CVE-2023-29545 1 Mozilla 3 Firefox, Firefox Esr, Thunderbird 2026-06-17 N/A 6.5 MEDIUM
Similar to CVE-2023-28163, this time when choosing 'Save Link As', suggested filenames containing environment variable names would have resolved those in the context of the current user. *This bug only affects Firefox and Thunderbird on Windows. Other versions of Firefox and Thunderbird are unaffected.* This vulnerability affects Firefox < 112, Firefox ESR < 102.10, and Thunderbird < 102.10.
CVE-2023-29542 2 Microsoft, Mozilla 4 Windows, Firefox, Firefox Esr and 1 more 2026-06-17 N/A 9.8 CRITICAL
A newline in a filename could have been used to bypass the file extension security mechanisms that replace malicious file extensions such as .lnk with .download. This could have led to accidental execution of malicious code. *This bug only affects Firefox and Thunderbird on Windows. Other versions of Firefox and Thunderbird are unaffected.* This vulnerability affects Firefox < 112, Firefox ESR < 102.10, and Thunderbird < 102.10.
CVE-2023-29532 2 Microsoft, Mozilla 4 Windows, Firefox, Firefox Esr and 1 more 2026-06-17 N/A 5.5 MEDIUM
A local attacker can trick the Mozilla Maintenance Service into applying an unsigned update file by pointing the service at an update file on a malicious SMB server. The update file can be replaced after the signature check, before the use, because the write-lock requested by the service does not work on a SMB server. *Note: This attack requires local system access and only affects Windows. Other operating systems are not affected.* This vulnerability affects Firefox < 112, Firefox ESR < 102.10, and Thunderbird < 102.10.
CVE-2023-29531 2 Apple, Mozilla 4 Macos, Firefox, Firefox Esr and 1 more 2026-06-17 N/A 9.8 CRITICAL
An attacker could have caused an out of bounds memory access using WebGL APIs, leading to memory corruption and a potentially exploitable crash. *This bug only affects Firefox and Thunderbird for macOS. Other operating systems are unaffected.* This vulnerability affects Firefox < 112, Firefox ESR < 102.10, and Thunderbird < 102.10.
CVE-2023-28177 1 Mozilla 1 Firefox 2026-06-17 N/A 8.8 HIGH
Memory safety bugs present in Firefox 110. 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 < 111.
CVE-2023-28176 1 Mozilla 3 Firefox, Firefox Esr, Thunderbird 2026-06-17 N/A 8.8 HIGH
Memory safety bugs present in Firefox 110 and Firefox ESR 102.8. 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 < 111, Firefox ESR < 102.9, and Thunderbird < 102.9.
CVE-2023-28164 1 Mozilla 3 Firefox, Firefox Esr, Thunderbird 2026-06-17 N/A 6.5 MEDIUM
Dragging a URL from a cross-origin iframe that was removed during the drag could have led to user confusion and website spoofing attacks. This vulnerability affects Firefox < 111, Firefox ESR < 102.9, and Thunderbird < 102.9.
CVE-2023-28163 1 Mozilla 3 Firefox, Firefox Esr, Thunderbird 2026-06-17 N/A 6.5 MEDIUM
When downloading files through the Save As dialog on Windows with suggested filenames containing environment variable names, Windows would have resolved those in the context of the current user. <br>*This bug only affects Firefox on Windows. Other versions of Firefox are unaffected.*. This vulnerability affects Firefox < 111, Firefox ESR < 102.9, and Thunderbird < 102.9.
CVE-2023-28162 1 Mozilla 3 Firefox, Firefox Esr, Thunderbird 2026-06-17 N/A 8.8 HIGH
While implementing AudioWorklets, some code may have casted one type to another, invalid, dynamic type. This could have led to a potentially exploitable crash. This vulnerability affects Firefox < 111, Firefox ESR < 102.9, and Thunderbird < 102.9.
CVE-2023-28161 1 Mozilla 1 Firefox 2026-06-17 N/A 8.8 HIGH
If temporary "one-time" permissions, such as the ability to use the Camera, were granted to a document loaded using a file: URL, that permission persisted in that tab for all other documents loaded from a file: URL. This is potentially dangerous if the local files came from different sources, such as in a download directory. This vulnerability affects Firefox < 111.
CVE-2023-28160 1 Mozilla 1 Firefox 2026-06-17 N/A 6.5 MEDIUM
When following a redirect to a publicly accessible web extension file, the URL may have been translated to the actual local path, leaking potentially sensitive information. This vulnerability affects Firefox < 111.
CVE-2023-28159 1 Mozilla 1 Firefox 2026-06-17 N/A 4.3 MEDIUM
The fullscreen notification could have been hidden on Firefox for Android by using download popups, resulting in potential user confusion or spoofing attacks. <br>*This bug only affects Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox < 111.