{
  "cveId": "CVE-2018-5135",
  "url": "https://patchblox.com/security/cve/CVE-2018-5135",
  "summary": "CVE-2018-5135 is fixed in 4 products on 1 platform, first by firefox 59.0.1\u002Bbuild1-0ubuntu1, released June 11, 2018. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "firefox: WebExtensions can bypass normal restrictions in some circumstances and use \u0022browser.tabs.executeScript\u0022 to inject scr...",
  "description": "WebExtensions can bypass normal restrictions in some circumstances and use \u0022browser.tabs.executeScript\u0022 to inject scripts into contexts where this should not be allowed, such as pages from other WebExtensions or unprivileged \u0022about:\u0022 pages. This vulnerability affects Firefox \u0026lt; 59.",
  "published": "2018-03-13T17:00:00Z",
  "severity": "Medium",
  "epss": 0.01497,
  "epssPercentile": 0.7433,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "firefox",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "59.0.1\u002Bbuild1-0ubuntu1",
      "fix": "firefox 59.0.1\u002Bbuild1-0ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-firefox-59.0.1-build1-0ubuntu1",
      "released": "2018-06-11T14:29:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox-globalmenu",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "59.0.1\u002Bbuild1-0ubuntu1",
      "fix": "firefox-globalmenu 59.0.1\u002Bbuild1-0ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-firefox-globalmenu-59.0.1-build1-0ubuntu1",
      "released": "2018-06-11T14:29:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox-mozsymbols",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "59.0.1\u002Bbuild1-0ubuntu1",
      "fix": "firefox-mozsymbols 59.0.1\u002Bbuild1-0ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-firefox-mozsymbols-59.0.1-build1-0ubuntu1",
      "released": "2018-06-11T14:29:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox-testsuite",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "59.0.1\u002Bbuild1-0ubuntu1",
      "fix": "firefox-testsuite 59.0.1\u002Bbuild1-0ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-firefox-testsuite-59.0.1-build1-0ubuntu1",
      "released": "2018-06-11T14:29:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-07T12:40:37Z"
}