CVE-2026-105420 (GCVE-0-2026-105420)

Vulnerability from cvelistv5 – Published: 2026-10-28 13:19 – Updated: 2026-10-28 13:19
VLAI
Title
Path Traversal in Wing WFTP Server leading to Remote Code Execution
Summary
Wing FTP Server does not verify user's base folder. An attacker with admin privileges can add user directories via scripts, allowing the added directories to escape the base folder. This allows the attacker to write files on the system and can lead to remote code execution with process owner privileges.Critically, since the installation guide mentions running the command with `sudo`, the files are created as “root.” This issue was fixed in version 8.2.6.
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
CERT-PL CNA under the ENISA root
CNA scorecard B 81/100 over 241 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Wing Soft Technology Wing FTP Server Affected: 0 , < 8.2.6 (semver)
    cpe:2.3:a:wing_soft_technology:wing_ftp_server:*:*:*:*:*:*:*:*
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Show details on NVD website

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          "vendor": "Wing Soft Technology",
          "versions": [
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              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
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        }
      ],
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            "privilegesRequired": "HIGH",
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            "subAvailabilityImpact": "HIGH",
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            "subIntegrityImpact": "HIGH",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H",
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          "descriptions": [
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              "cweId": "CWE-22",
              "description": "CWE-22 Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
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              "type": "CWE"
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      "providerMetadata": {
        "dateUpdated": "2026-10-28T13:19:31.908Z",
        "orgId": "4bb8329e-dd38-46c1-aafb-9bf32bcb93c6",
        "shortName": "CERT-PL"
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      "references": [
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          "tags": [
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          "url": "https://cert.pl/en/posts/2026/10/CVE-2026-105420"
        },
        {
          "tags": [
            "product"
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          "url": "https://www.wftpserver.com/"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
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      "title": "Path Traversal in Wing WFTP Server leading to Remote Code Execution",
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    "datePublished": "2026-10-28T13:19:31.908Z",
    "dateReserved": "2026-10-05T11:39:15.067Z",
    "dateUpdated": "2026-10-28T13:19:31.908Z",
    "state": "PUBLISHED"
  },
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                    "version": "0",
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            "source": "cvd@cert.pl"
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        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "Wing FTP Server does not verify user\u0027s base folder. An attacker with admin privileges can add user directories via scripts, allowing the added directories to escape the base folder. This allows the attacker to write files on the system and can lead to remote code execution with process owner privileges.Critically, since the installation guide mentions running the command with `sudo`, the files are created as \u201croot.\u201d\n\n\n\n\nThis issue was fixed in version 8.2.6."
          }
        ],
        "id": "CVE-2026-105420",
        "lastModified": "2026-10-28T15:24:56.033",
        "metrics": {
          "cvssMetricV40": [
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                "Recovery": "NOT_DEFINED",
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                "availabilityRequirement": "NOT_DEFINED",
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                "baseSeverity": "CRITICAL",
                "confidentialityRequirement": "NOT_DEFINED",
                "exploitMaturity": "NOT_DEFINED",
                "integrityRequirement": "NOT_DEFINED",
                "modifiedAttackComplexity": "NOT_DEFINED",
                "modifiedAttackRequirements": "NOT_DEFINED",
                "modifiedAttackVector": "NOT_DEFINED",
                "modifiedPrivilegesRequired": "NOT_DEFINED",
                "modifiedSubAvailabilityImpact": "NOT_DEFINED",
                "modifiedSubConfidentialityImpact": "NOT_DEFINED",
                "modifiedSubIntegrityImpact": "NOT_DEFINED",
                "modifiedUserInteraction": "NOT_DEFINED",
                "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
                "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
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                "valueDensity": "NOT_DEFINED",
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            "url": "https://www.wftpserver.com/"
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            "type": "Primary"
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    }
  }
}



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