Mozilla: >> Firefox >> 107.0 Security Vulnerabilities
A mishandled security check when creating a WebSocket in a WebWorker caused the Content Security Policy connect-src header to be ignored. This could lead to connections to restricted origins from inside WebWorkers. This vulnerability affects Firefox < 109, Thunderbird < 102.7, and Firefox ESR < 102.7.
CVSS Score
6.5
EPSS Score
0.001
Published
2023-06-02
Regular expressions used to filter out forbidden properties and values from style directives in calls to <code>console.log</code> weren't accounting for external URLs. Data could then be potentially exfiltrated from the browser. This vulnerability affects Firefox < 109, Thunderbird < 102.7, and Firefox ESR < 102.7.
CVSS Score
6.5
EPSS Score
0.002
Published
2023-06-02
A duplicate <code>SystemPrincipal</code> object could be created when parsing a non-system html document via <code>DOMParser::ParseFromSafeString</code>. This could have lead to bypassing web security checks. This vulnerability affects Firefox < 109.
CVSS Score
6.5
EPSS Score
0.0
Published
2023-06-02
Memory safety bugs present in Firefox 108 and Firefox ESR 102.6. 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 < 109, Thunderbird < 102.7, and Firefox ESR < 102.7.
CVSS Score
8.8
EPSS Score
0.001
Published
2023-06-02
Memory safety bugs present in Firefox 108. 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 < 109.
CVSS Score
8.8
EPSS Score
0.002
Published
2023-06-02
Mozilla developers and community members Lukas Bernhard, Gabriele Svelto, Randell Jesup, and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 107. 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 < 108.
CVSS Score
8.8
EPSS Score
0.004
Published
2022-12-22
Because Firefox did not implement the <code>unsafe-hashes</code> CSP directive, an attacker who was able to inject markup into a page otherwise protected by a Content Security Policy may have been able to inject executable script. This would be severely constrained by the specified Content Security Policy of the document. This vulnerability affects Firefox < 108.
CVSS Score
8.8
EPSS Score
0.004
Published
2022-12-22
A file with a long filename could have had its filename truncated to remove the valid extension, leaving a malicious extension in its place. This could potentially led to user confusion and the execution of malicious code.<br/>*Note*: This issue was originally included in the advisories for Thunderbird 102.6, but a patch (specific to Thunderbird) was omitted, resulting in it actually being fixed in Thunderbird 102.6.1. This vulnerability affects Firefox < 108, Thunderbird < 102.6.1, Thunderbird < 102.6, and Firefox ESR < 102.6.
CVSS Score
8.8
EPSS Score
0.003
Published
2022-12-22
The executable file warning was not presented when downloading .atloc and .ftploc files, which can run commands on a user's computer. <br>*Note: This issue only affected Mac OS operating systems. Other operating systems are unaffected.*. This vulnerability affects Firefox < 108, Firefox ESR < 102.6, and Thunderbird < 102.6.
CVSS Score
6.5
EPSS Score
0.001
Published
2022-12-22
By confusing the browser, the fullscreen notification could have been delayed or suppressed, resulting in potential user confusion or spoofing attacks. This vulnerability affects Firefox < 108.
CVSS Score
4.3
EPSS Score
0.004
Published
2022-12-22