CVE-2026-9282 (GCVE-0-2026-9282)

Vulnerability from cvelistv5 – Published: 2026-07-11 06:50 – Updated: 2026-07-11 06:50
VLAI
Title
W3 Total Cache <= 2.9.4 - Unauthenticated Arbitrary File Read via 'f_array[]' Parameter
Summary
The W3 Total Cache plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 2.9.4 via the setupSources function. This makes it possible for unauthenticated attackers to read the contents of arbitrary files on the server, which can contain sensitive information. Exploitation requires enabling manual minify mode and supplying a manual-format minify filename so that the hash is empty and the f_array[] entries are not overwritten before reaching setupSources().
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
Impacted products
Vendor Product Version
boldgrid W3 Total Cache Affected: 0 , ≤ 2.9.4 (semver)
Create a notification for this product.
Credits
snr
Show details on NVD website

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "W3 Total Cache",
          "vendor": "boldgrid",
          "versions": [
            {
              "lessThanOrEqual": "2.9.4",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "snr"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The W3 Total Cache plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 2.9.4 via the setupSources function. This makes it possible for unauthenticated attackers to read the contents of arbitrary files on the server, which can contain sensitive information. Exploitation requires enabling manual minify mode and supplying a manual-format minify filename so that the hash is empty and the f_array[] entries are not overwritten before reaching setupSources()."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-22",
              "description": "CWE-22 Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-11T06:50:33.051Z",
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence"
      },
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/e92cc06d-006f-4bba-a4ef-b23d80c00085?source=cve"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/w3-total-cache/tags/2.9.4/lib/Minify/Minify/Controller/MinApp.php#L163"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/w3-total-cache/tags/2.9.4/lib/Minify/Minify/Controller/MinApp.php#L109"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/w3-total-cache/tags/2.9.4/Minify_MinifiedFileRequestHandler.php#L191"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/w3-total-cache/tags/2.9.4/Minify_Plugin.php#L132"
        },
        {
          "url": "https://plugins.trac.wordpress.org/changeset?reponame=\u0026old=3585227%40w3-total-cache\u0026new=3585227%40w3-total-cache"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-05-22T14:40:12.000Z",
          "value": "Vendor Notified"
        },
        {
          "lang": "en",
          "time": "2026-07-10T18:09:47.000Z",
          "value": "Disclosed"
        }
      ],
      "title": "W3 Total Cache \u003c= 2.9.4 - Unauthenticated Arbitrary File Read via \u0027f_array[]\u0027 Parameter"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
    "assignerShortName": "Wordfence",
    "cveId": "CVE-2026-9282",
    "datePublished": "2026-07-11T06:50:33.051Z",
    "dateReserved": "2026-05-22T14:24:54.137Z",
    "dateUpdated": "2026-07-11T06:50:33.051Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-9282\",\"sourceIdentifier\":\"security@wordfence.com\",\"published\":\"2026-07-11T07:16:47.070\",\"lastModified\":\"2026-07-11T07:16:47.070\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The W3 Total Cache plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 2.9.4 via the setupSources function. This makes it possible for unauthenticated attackers to read the contents of arbitrary files on the server, which can contain sensitive information. Exploitation requires enabling manual minify mode and supplying a manual-format minify filename so that the hash is empty and the f_array[] entries are not overwritten before reaching setupSources().\"}],\"affected\":[{\"source\":\"security@wordfence.com\",\"affectedData\":[{\"vendor\":\"boldgrid\",\"product\":\"W3 Total Cache\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"0\",\"lessThanOrEqual\":\"2.9.4\",\"versionType\":\"semver\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security@wordfence.com\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"security@wordfence.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-22\"}]}],\"references\":[{\"url\":\"https://plugins.trac.wordpress.org/browser/w3-total-cache/tags/2.9.4/Minify_MinifiedFileRequestHandler.php#L191\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/browser/w3-total-cache/tags/2.9.4/Minify_Plugin.php#L132\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/browser/w3-total-cache/tags/2.9.4/lib/Minify/Minify/Controller/MinApp.php#L109\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/browser/w3-total-cache/tags/2.9.4/lib/Minify/Minify/Controller/MinApp.php#L163\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/changeset?reponame=\u0026old=3585227%40w3-total-cache\u0026new=3585227%40w3-total-cache\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://www.wordfence.com/threat-intel/vulnerabilities/id/e92cc06d-006f-4bba-a4ef-b23d80c00085?source=cve\",\"source\":\"security@wordfence.com\"}]}}"
  }
}



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