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.
Published 2018-06-11 21:29:14
Updated 2018-06-25 17:25:37
Source Mozilla Corporation
View at NVD,   CVE.org

Products affected by CVE-2018-5116

Exploit prediction scoring system (EPSS) score for CVE-2018-5116

EPSS FAQ
0.68%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 78 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2018-5116

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
7.5
 HIGH AV:N/AC:L/Au:N/C:P/I:P/A:P
10.0
6.4
 NIST
9.8
 CRITICAL CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.9
5.9
 NIST

CWE ids for CVE-2018-5116

  • The product does not properly verify that the source of data or communication is valid.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2018-5116

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