GHSA-RPF5-XPFP-546F

Vulnerability from github – Published: 2022-05-14 03:10 – Updated: 2025-11-25 18:32
VLAI?
Details

When Private Browsing mode is used, it is possible for a web worker to write persistent data to IndexedDB and fingerprint a user uniquely. IndexedDB should not be available in Private Browsing mode and this stored data will persist across multiple private browsing mode sessions because it is not cleared when exiting. This vulnerability affects Firefox ESR < 52.5.2 and Firefox < 57.0.1.

Severity ?
7.5 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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{
  "affected": [],
  "aliases": [
    "CVE-2017-7843"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-200"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-06-11T21:29:00Z",
    "severity": "HIGH"
  },
  "details": "When Private Browsing mode is used, it is possible for a web worker to write persistent data to IndexedDB and fingerprint a user uniquely. IndexedDB should not be available in Private Browsing mode and this stored data will persist across multiple private browsing mode sessions because it is not cleared when exiting. This vulnerability affects Firefox ESR \u003c 52.5.2 and Firefox \u003c 57.0.1.",
  "id": "GHSA-rpf5-xpfp-546f",
  "modified": "2025-11-25T18:32:11Z",
  "published": "2022-05-14T03:10:11Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-7843"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2017:3382"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1410106"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2017/12/msg00003.html"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2017/dsa-4062"
    },
    {
      "type": "WEB",
      "url": "https://www.mozilla.org/security/advisories/mfsa2017-27"
    },
    {
      "type": "WEB",
      "url": "https://www.mozilla.org/security/advisories/mfsa2017-28"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/102039"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/102112"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1039954"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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