CVEvulnerability
CVE-2018-5143
6.1 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2018-06-11
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.0 ([email protected])
- 6.1 MEDIUM — CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- CVSS 2.0 ([email protected])
- 4.3 MEDIUM — AV:N/AC:M/Au:N/C:N/I:P/A:N
- Weaknesses
- CWE-79
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.
Affected configurations
• mozilla firefox (< 59.0)
• canonical ubuntu linux 14.04
• canonical ubuntu linux 16.04
• canonical ubuntu linux 17.10
Related
Weakness · CWE (1)
- CWE-79 Improper Neutralization of Input During Web Page Generation weakness
References
- http://www.securityfocus.com/bid/103386 Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040514 Third Party Advisory, VDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1422643 Issue Tracking, Vendor Advisory
- https://usn.ubuntu.com/3596-1/ Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-06/ Vendor Advisory
- http://www.securityfocus.com/bid/103386 Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040514 Third Party Advisory, VDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1422643 Issue Tracking, Vendor Advisory
- https://usn.ubuntu.com/3596-1/ Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-06/ Vendor Advisory