Vulnerability Details : CVE-2018-5133
If the "app.support.baseURL" preference is changed by a malicious local program to contain HTML and script content, this content is not sanitized. It will be executed if a user loads "chrome://browser/content/preferences/in-content/preferences.xul" directly in a tab and executes a search. This stored preference is also executed whenever an EME video player plugin displays a CDM-disabled message as a notification message. This vulnerability affects Firefox < 59.
Vulnerability category: Information leak
Products affected by CVE-2018-5133
- 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:17.10:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-5133
0.93%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 75 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-5133
| 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-2018-5133
-
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-5133
-
https://usn.ubuntu.com/3596-1/
USN-3596-1: Firefox vulnerabilities | Ubuntu security noticesThird Party Advisory
-
http://www.securitytracker.com/id/1040514
Mozilla Firefox Multiple Bugs Let Remote Users Spoof URLs, Bypass Security Restrictions, Deny Service, Obtain Potentially Sensitive Information, and Execute Arbitrary Code - SecurityTrackerVDB Entry;Third Party Advisory
-
https://www.mozilla.org/security/advisories/mfsa2018-06/
Security vulnerabilities fixed in Firefox 59 — MozillaVendor Advisory
-
https://bugzilla.mozilla.org/show_bug.cgi?id=1430511
1430511 - (CVE-2018-5133) Stored XSS in chrome://browser/content/preferences/in-content/findInPage.js line 306Permissions Required
-
http://www.securityfocus.com/bid/103386
Mozilla Firefox MFSA2018-06 Multiple Security VulnerabilitiesThird Party Advisory;VDB Entry
-
https://bugzilla.mozilla.org/show_bug.cgi?id=1430974
1430974 - Stored XSS in chrome://browser/content/browser-media.js line 40Permissions Required
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