FKIE_CVE-2026-15991

Vulnerability from fkie_nvd - Published: 2026-08-06 05:16 - Updated: 2026-08-12 21:00
Severity
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
The File Manager plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the connector function in all versions from 6.0 - 6.9. This makes it possible for authenticated attackers, with subscriber-level access and above, to read and delete arbitrary files on the server, which can lead to remote code execution when the right file is deleted (such as wp-config.php). The bypass is triggered by passing cmd=rm or cmf=file in the URL query string of a POST request: elFinder's bind registration reads the command exclusively from $_POST and therefore never registers the rm.pre permission handler, while the dispatcher reads from the merged $_GET+$_POST superglobal and executes the rm or file command unchecked against a volume that defaults to ABSPATH.
References
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/file-manager/tags/6.9/backend/app/Http/Controllers/FileManagerController.php#L32
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/file-manager/tags/6.9/backend/app/Http/Controllers/FileManagerController.php#L34
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/file-manager/tags/6.9/backend/app/Providers/AccessControlProvider.php#L121
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/file-manager/tags/6.9/backend/hooks/ajax.php#L10
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/file-manager/tags/6.9/vendor/studio-42/elfinder/php/elFinder.class.php#L802
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/file-manager/tags/6.9/vendor/studio-42/elfinder/php/elFinderConnector.class.php#L320
security@wordfence.comhttps://plugins.trac.wordpress.org/changeset/3632660/file-manager/trunk/backend/app/Http/Controllers/FileManagerController.php
security@wordfence.comhttps://plugins.trac.wordpress.org/changeset?old_path=%2Ffile-manager/tags/6.9&new_path=%2Ffile-manager/tags/6.9.1
security@wordfence.comhttps://www.wordfence.com/threat-intel/vulnerabilities/id/a041f15c-0e30-459b-8df7-0465c0bc268a?source=cve
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "File Manager",
          "vendor": "bitpressadmin",
          "versions": [
            {
              "lessThanOrEqual": "6.9",
              "status": "affected",
              "version": "6.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "security@wordfence.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The File Manager plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the connector function in all versions from 6.0 - 6.9. This makes it possible for authenticated attackers, with subscriber-level access and above, to read and delete arbitrary files on the server, which can lead to remote code execution when the right file is deleted (such as wp-config.php). The bypass is triggered by passing cmd=rm or cmf=file in the URL query string of a POST request: elFinder\u0027s bind registration reads the command exclusively from $_POST and therefore never registers the rm.pre permission handler, while the dispatcher reads from the merged $_GET+$_POST superglobal and executes the rm or file command unchecked against a volume that defaults to ABSPATH."
    }
  ],
  "id": "CVE-2026-15991",
  "lastModified": "2026-08-12T21:00:52.257",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "security@wordfence.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-15991",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-06T15:28:21.927047Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-06T05:16:38.930",
  "references": [
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/file-manager/tags/6.9/backend/app/Http/Controllers/FileManagerController.php#L32"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/file-manager/tags/6.9/backend/app/Http/Controllers/FileManagerController.php#L34"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/file-manager/tags/6.9/backend/app/Providers/AccessControlProvider.php#L121"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/file-manager/tags/6.9/backend/hooks/ajax.php#L10"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/file-manager/tags/6.9/vendor/studio-42/elfinder/php/elFinder.class.php#L802"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/file-manager/tags/6.9/vendor/studio-42/elfinder/php/elFinderConnector.class.php#L320"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/changeset/3632660/file-manager/trunk/backend/app/Http/Controllers/FileManagerController.php"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/changeset?old_path=%2Ffile-manager/tags/6.9\u0026new_path=%2Ffile-manager/tags/6.9.1"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/a041f15c-0e30-459b-8df7-0465c0bc268a?source=cve"
    }
  ],
  "sourceIdentifier": "security@wordfence.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ],
      "source": "security@wordfence.com",
      "type": "Secondary"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • 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.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • 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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