CVE-2018-5143

2018-06-1121:00:00

mozilla

www.cve.org

6.3 Medium

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

59.9%

JSON

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.

CNA Affected

[
  {
    "product": "Firefox",
    "vendor": "Mozilla",
    "versions": [
      {
        "lessThan": "59",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]