vulnerability
MFSA2017-22 Firefox: Security vulnerabilities fixed in Firefox ESR 52.4 (CVE-2017-7823)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:M/Au:N/C:N/I:P/A:N) | Sep 28, 2017 | Sep 29, 2017 | Aug 11, 2025 |
Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
Sep 28, 2017
Added
Sep 29, 2017
Modified
Aug 11, 2025
Description
The content security policy (CSP) "sandbox" directive did not create a unique origin for the document, causing it to behave as if the "allow-same-origin" keyword were always specified. This could allow a Cross-Site Scripting (XSS) attack to be launched from unsafe content. This vulnerability affects Firefox < 56, Firefox ESR < 52.4, and Thunderbird < 52.4.
Solution
mozilla-firefox-esr-upgrade-52_4
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