Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2018-5116

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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.007
EPSS Ranking 71.1%
CVSS Severity
CVSS v3 Score 9.8
CVSS v2 Score 7.5
Products affected by CVE-2018-5116


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