Vulnerability Details : CVE-2018-18495
WebExtension content scripts can be loaded into about: pages in some circumstances, in violation of the permissions granted to extensions. This could allow an extension to interfere with the loading and usage of these pages and use capabilities that were intended to be restricted from extensions. This vulnerability affects Firefox < 64.
Products affected by CVE-2018-18495
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-18495
0.73%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 71 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-18495
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:N/A:N |
8.6
|
2.9
|
NIST | |
|
6.5
|
MEDIUM | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |
2.8
|
3.6
|
NIST |
CWE ids for CVE-2018-18495
-
The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-18495
-
https://bugzilla.mozilla.org/show_bug.cgi?id=1427585
Access DeniedIssue Tracking;Permissions Required;Vendor Advisory
-
http://www.securityfocus.com/bid/106167
Mozilla Firefox MFSA2018-29 Multiple Security VulnerabilitiesThird Party Advisory;VDB Entry
-
https://www.mozilla.org/security/advisories/mfsa2018-29/
Security vulnerabilities fixed in Firefox 64 — MozillaVendor Advisory
-
https://usn.ubuntu.com/3844-1/
USN-3844-1: Firefox vulnerabilities | Ubuntu security noticesThird Party Advisory
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