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firefox-esr — security advisory

Type: advisorySources: OSVAdvisory ID: DEBIAN-CVE-2018-12397

A WebExtension can request access to local files without the warning prompt stating that the extension will "Access your data for all websites" being displayed to the user. This allows extensions to run content scripts in local pages without permission warnings when a local file is opened. This vulnerability affects Firefox ESR < 60.3 and Firefox < 63.

Products
firefox-esr
Affected versions
Not specified
Fixed versions
60.3.0esr-1
CVEs
CVE-2018-12397
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 00:47 UTC · Revision 1

Source evidence

DEBIAN-CVE-2018-12397

core-osv · Original source

Published 28 Feb 2019, 18:29 UTC

A WebExtension can request access to local files without the warning prompt stating that the extension will "Access your data for all websites" being displayed to the user. This allows extensions to run content scripts in local pages without permission warnings when a local file is opened. This vulnerability affects Firefox ESR < 60.3 and Firefox < 63.

osv:DEBIAN-CVE-2018-12397

firefox-esr

Fixed versions: 60.3.0esr-1

firefox-esr

Fixed versions: 60.3.0esr-1

firefox-esr

Fixed versions: 60.3.0esr-1

Complete source record
{
  "id": "dafcfb3396699d11ed12e1655b577dc7bd40c9ac5bd96df1fb64f65543bd4381",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2018-12397",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2018-12397",
    "summary": "A WebExtension can request access to local files without the warning prompt stating that the extension will \"Access your data for all websites\" being displayed to the user. This allows extensions to run content scripts in local pages without permission warnings when a local file is opened. This vulnerability affects Firefox ESR < 60.3 and Firefox < 63.",
    "evidence": "osv:DEBIAN-CVE-2018-12397",
    "products": [
      {
        "name": {
          "value": "firefox-esr",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "60.3.0esr-1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "firefox-esr",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "60.3.0esr-1",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "firefox-esr",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "60.3.0esr-1",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "DEBIAN-CVE-2018-12397",
      "aliases": [
        "DEBIAN-CVE-2018-12397"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "60.3.0esr-1"
                }
              ]
            }
          ],
          "package": {
            "name": "firefox-esr",
            "purl": "pkg:deb/debian/firefox-esr?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-12397.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "60.3.0esr-1"
                }
              ]
            }
          ],
          "package": {
            "name": "firefox-esr",
            "purl": "pkg:deb/debian/firefox-esr?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-12397.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "60.3.0esr-1"
                }
              ]
            }
          ],
          "package": {
            "name": "firefox-esr",
            "purl": "pkg:deb/debian/firefox-esr?arch=source&distro=forky",
            "ecosystem": "Debian:14"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-12397.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-23T18:03:46.990357138Z",
      "provider": "osv",
      "upstream": [
        "CVE-2018-12397"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2018-12397"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2018-12397",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 422217,
  "published_at": "2019-02-28T18:29:00.883+00:00"
}