CVE-2018-12395

2019-02-2818:00:00

mozilla

www.cve.org

7.2 High

AI Score

Confidence

High

0.016 Low

EPSS

Percentile

87.3%

JSON

By rewriting the Host: request headers using the webRequest API, a WebExtension can bypass domain restrictions through domain fronting. This would allow access to domains that share a host that are otherwise restricted. This vulnerability affects Firefox ESR < 60.3 and Firefox < 63.

CNA Affected

[
  {
    "product": "Firefox ESR",
    "vendor": "Mozilla",
    "versions": [
      {
        "lessThan": "60.3",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "Firefox",
    "vendor": "Mozilla",
    "versions": [
      {
        "lessThan": "63",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]