CVE-2018-5143

CVSS V2 Medium 4.3 CVSS V3 Medium 6.1
Description
URLs using "javascript:" have the protocol removed when pasted into the addressbar to protect users from cross-site scripting (XSS) attacks, but if a tab character is embedded in the "javascript:" URL the protocol is not removed and the script will execute. This could allow users to be socially engineered to run an XSS attack against themselves. This vulnerability affects Firefox < 59.
Overview
  • CVE ID
  • CVE-2018-5143
  • Assigner
  • security@mozilla.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2018-06-11T21:29:14
  • Last Modified Date
  • 2018-08-02T19:28:19
Weakness Enumerations
CWE URL
CWE-79 http://cwe.mitre.org/data/definitions/79.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* 1 OR 59.0
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:N/I:P/A:N
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • NONE
  • Base Score
  • 4.3
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8.6
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • REQUIRED
  • Scope
  • CHANGED
  • Confidentiality Impact
  • LOW
  • Availability Impact
  • NONE
  • Base Score
  • 6.1
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 2.8
  • Impact Score
  • 2.7
References
Reference URL Reference Tags
https://www.mozilla.org/security/advisories/mfsa2018-06/ Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1422643 Issue Tracking Vendor Advisory
https://usn.ubuntu.com/3596-1/ Third Party Advisory
http://www.securitytracker.com/id/1040514 Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/103386 Third Party Advisory VDB Entry
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2018-5143
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-5143
History
Created Old Value New Value Data Type Notes
2022-05-10 18:40:35 Added to TrackCVE
2022-12-03 07:54:09 2018-06-11T21:29Z 2018-06-11T21:29:14 CVE Published Date updated
2022-12-03 07:54:09 2018-08-02T19:28:19 CVE Modified Date updated
2022-12-03 07:54:09 Analyzed Vulnerability Status updated