CVE-2018-5143

medium

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.

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1422643

https://usn.ubuntu.com/3596-1/

https://www.mozilla.org/security/advisories/mfsa2018-06/

http://www.securitytracker.com/id/1040514

Details

Source: Mitre, NVD

Published: 2018-06-11

Risk Information

CVSS v2

Base Score: 4.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 6.1

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Severity: Medium