vulnerability
MFSA2018-02 Firefox: Security vulnerabilities fixed in Firefox 58 (CVE-2018-5116)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 8 | (AV:N/AC:L/Au:N/C:P/I:P/A:P) | Jan 23, 2018 | Jan 24, 2018 | Aug 11, 2025 |
Severity
8
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
Jan 23, 2018
Added
Jan 24, 2018
Modified
Aug 11, 2025
Description
WebExtensions with the "ActiveTab" permission are able to access frames hosted within the active tab even if the frames are cross-origin. Malicious extensions can inject frames from arbitrary origins into the loaded page and then interact with them, bypassing same-origin user expectations with this permission. This vulnerability affects Firefox < 58.
Solution
mozilla-firefox-upgrade-58_0
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