vulnerability
MFSA2017-24 Firefox: Security vulnerabilities fixed in Firefox 57 (CVE-2017-7834)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:M/Au:N/C:N/I:P/A:N) | Nov 14, 2017 | Nov 15, 2017 | Aug 11, 2025 |
Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
Nov 14, 2017
Added
Nov 15, 2017
Modified
Aug 11, 2025
Description
A "data:" URL loaded in a new tab did not inherit the Content Security Policy (CSP) of the original page, allowing for bypasses of the policy including the execution of JavaScript. In prior versions when "data:" documents also inherited the context of the original page this would allow for potential cross-site scripting (XSS) attacks. This vulnerability affects Firefox < 57.
Solution
mozilla-firefox-upgrade-57_0
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