Vulnerability-Lookup

CVE-2026-90871 (GCVE-0-2026-90871)

Vulnerability from cvelistv5 – Published: 2026-10-29 15:56 – Updated: 2026-10-30 17:15

Title

Path Traversal Leading to File Deletion in Ad Hoc Transfer and Web Transfer in Progress WS_FTP Server

Summary

Improper limitation of a pathname to a restricted directory in Progress Software WS_FTP Server versions prior to 2024.0.7 and 2025.0.4 on Windows could allow an unauthenticated attacker to affect files outside the intended directory.

Severity

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-30 17:15 UTC

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-73 - External Control of File Name or Path

Assigner

ProgressSoftware CNA under the mitre root

CNA scorecard B 78/100 over 160 records in the last 180 days details

References

1 reference

URL	Tags
https://progress.lightning.force.com/lightning/r/…	vendor-advisory

Impacted products

1 product

Vendor	Product	Version	CPE status
Progress Software	WS_FTP Server	Affected: 0 , < 2024.0.7 (custom) Affected: 0 , < 2025.0.4 (custom)	guessed

Credits

Momen Elmady (0xmatrix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-90871",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-30T17:15:23.342163Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-30T17:15:33.651Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "Windows"
          ],
          "product": "WS_FTP Server",
          "vendor": "Progress Software",
          "versions": [
            {
              "lessThan": "2024.0.7",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            },
            {
              "lessThan": "2025.0.4",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Momen Elmady (0xmatrix)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Improper limitation of a pathname to a restricted directory in Progress Software WS_FTP Server versions prior to 2024.0.7 and 2025.0.4 on Windows could allow an unauthenticated attacker to affect files outside the intended directory."
            }
          ],
          "value": "Improper limitation of a pathname to a restricted directory in Progress Software WS_FTP Server versions prior to 2024.0.7 and 2025.0.4 on Windows could allow an unauthenticated attacker to affect files outside the intended directory."
        }
      ],
      "impacts": [
        {
          "descriptions": [
            {
              "lang": "en",
              "value": "Path Traversal - could allow file deletion outside intended directory boundaries, subject to the affected account\u2019s permissions."
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-22",
              "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
              "lang": "en",
              "type": "CWE"
            },
            {
              "cweId": "CWE-73",
              "description": "CWE-73: External Control of File Name or Path",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-29T15:56:34.762Z",
        "orgId": "f9fea0b6-671e-4eea-8fde-31911902ae05",
        "shortName": "ProgressSoftware"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://progress.lightning.force.com/lightning/r/Knowledge__kav/ka7Pb000001vl86IAA/view"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Path Traversal Leading to File Deletion in Ad Hoc Transfer and Web Transfer in Progress WS_FTP Server",
      "workarounds": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cdiv\u003eBy default the affected anonymous account can only delete files it previously created; ensure it is not granted broader write/delete permissions than required on Ad Hoc Transfer and Web Transfer related directories. Contact Progress Software Technical Support for guidance on available mitigations.\u003c/div\u003e"
            }
          ],
          "value": "By default the affected anonymous account can only delete files it previously created; ensure it is not granted broader write/delete permissions than required on Ad Hoc Transfer and Web Transfer related directories. Contact Progress Software Technical Support for guidance on available mitigations."
        }
      ],
      "x_generator": {
        "engine": "Vulnogram 0.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f9fea0b6-671e-4eea-8fde-31911902ae05",
    "assignerShortName": "ProgressSoftware",
    "cveId": "CVE-2026-90871",
    "datePublished": "2026-10-29T15:56:34.762Z",
    "dateReserved": "2026-09-14T06:10:04.370Z",
    "dateUpdated": "2026-10-30T17:15:33.651Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-90871",
      "date": "2026-10-30",
      "epss": "0.00265",
      "percentile": "0.18515"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "platforms": [
                  "Windows"
                ],
                "product": "WS_FTP Server",
                "vendor": "Progress Software",
                "versions": [
                  {
                    "lessThan": "2024.0.7",
                    "status": "affected",
                    "version": "0",
                    "versionType": "custom"
                  },
                  {
                    "lessThan": "2025.0.4",
                    "status": "affected",
                    "version": "0",
                    "versionType": "custom"
                  }
                ]
              }
            ],
            "source": "security@progress.com"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "Improper limitation of a pathname to a restricted directory in Progress Software WS_FTP Server versions prior to 2024.0.7 and 2025.0.4 on Windows could allow an unauthenticated attacker to affect files outside the intended directory."
          }
        ],
        "id": "CVE-2026-90871",
        "lastModified": "2026-10-30T18:18:17.843",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 5.3,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "LOW",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 1.4,
              "source": "security@progress.com",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2026-90871",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "yes"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-30T17:15:23.342163Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2026-10-29T16:20:05.307",
        "references": [
          {
            "source": "security@progress.com",
            "url": "https://progress.lightning.force.com/lightning/r/Knowledge__kav/ka7Pb000001vl86IAA/view"
          }
        ],
        "sourceIdentifier": "security@progress.com",
        "vulnStatus": "Awaiting Analysis",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-22"
              },
              {
                "lang": "en",
                "value": "CWE-73"
              }
            ],
            "source": "security@progress.com",
            "type": "Secondary"
          }
        ]
      }
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-90871",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "yes"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-10-30T17:15:23.342163Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-10-30T17:15:29.271Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "platforms": [
                "Windows"
              ],
              "product": "WS_FTP Server",
              "vendor": "Progress Software",
              "versions": [
                {
                  "lessThan": "2024.0.7",
                  "status": "affected",
                  "version": "0",
                  "versionType": "custom"
                },
                {
                  "lessThan": "2025.0.4",
                  "status": "affected",
                  "version": "0",
                  "versionType": "custom"
                }
              ]
            }
          ],
          "credits": [
            {
              "lang": "en",
              "type": "finder",
              "value": "Momen Elmady (0xmatrix)"
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "Improper limitation of a pathname to a restricted directory in Progress Software WS_FTP Server versions prior to 2024.0.7 and 2025.0.4 on Windows could allow an unauthenticated attacker to affect files outside the intended directory."
                }
              ],
              "value": "Improper limitation of a pathname to a restricted directory in Progress Software WS_FTP Server versions prior to 2024.0.7 and 2025.0.4 on Windows could allow an unauthenticated attacker to affect files outside the intended directory."
            }
          ],
          "impacts": [
            {
              "descriptions": [
                {
                  "lang": "en",
                  "value": "Path Traversal - could allow file deletion outside intended directory boundaries, subject to the affected account\u2019s permissions."
                }
              ]
            }
          ],
          "metrics": [
            {
              "cvssV3_1": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 5.3,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "LOW",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
                "version": "3.1"
              },
              "format": "CVSS",
              "scenarios": [
                {
                  "lang": "en",
                  "value": "GENERAL"
                }
              ]
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-22",
                  "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
                  "lang": "en",
                  "type": "CWE"
                },
                {
                  "cweId": "CWE-73",
                  "description": "CWE-73: External Control of File Name or Path",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-10-29T15:56:34.762Z",
            "orgId": "f9fea0b6-671e-4eea-8fde-31911902ae05",
            "shortName": "ProgressSoftware"
          },
          "references": [
            {
              "tags": [
                "vendor-advisory"
              ],
              "url": "https://progress.lightning.force.com/lightning/r/Knowledge__kav/ka7Pb000001vl86IAA/view"
            }
          ],
          "source": {
            "discovery": "EXTERNAL"
          },
          "title": "Path Traversal Leading to File Deletion in Ad Hoc Transfer and Web Transfer in Progress WS_FTP Server",
          "workarounds": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "\u003cdiv\u003eBy default the affected anonymous account can only delete files it previously created; ensure it is not granted broader write/delete permissions than required on Ad Hoc Transfer and Web Transfer related directories. Contact Progress Software Technical Support for guidance on available mitigations.\u003c/div\u003e"
                }
              ],
              "value": "By default the affected anonymous account can only delete files it previously created; ensure it is not granted broader write/delete permissions than required on Ad Hoc Transfer and Web Transfer related directories. Contact Progress Software Technical Support for guidance on available mitigations."
            }
          ],
          "x_generator": {
            "engine": "Vulnogram 0.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "f9fea0b6-671e-4eea-8fde-31911902ae05",
        "assignerShortName": "ProgressSoftware",
        "cveId": "CVE-2026-90871",
        "datePublished": "2026-10-29T15:56:34.762Z",
        "dateReserved": "2026-09-14T06:10:04.370Z",
        "dateUpdated": "2026-10-30T17:15:33.651Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

FKIE_CVE-2026-90871

Vulnerability from fkie_nvd - Published: 2026-10-29 16:20 - Updated: 2026-10-30 18:18

Severity

5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Summary

References

	URL	Tags
	security@progress.com	https://progress.lightning.force.com/lightning/r/Knowledge__kav/ka7Pb000001vl86IAA/view

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "Windows"
          ],
          "product": "WS_FTP Server",
          "vendor": "Progress Software",
          "versions": [
            {
              "lessThan": "2024.0.7",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            },
            {
              "lessThan": "2025.0.4",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "security@progress.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Improper limitation of a pathname to a restricted directory in Progress Software WS_FTP Server versions prior to 2024.0.7 and 2025.0.4 on Windows could allow an unauthenticated attacker to affect files outside the intended directory."
    }
  ],
  "id": "CVE-2026-90871",
  "lastModified": "2026-10-30T18:18:17.843",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4,
        "source": "security@progress.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-90871",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-10-30T17:15:23.342163Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-10-29T16:20:05.307",
  "references": [
    {
      "source": "security@progress.com",
      "url": "https://progress.lightning.force.com/lightning/r/Knowledge__kav/ka7Pb000001vl86IAA/view"
    }
  ],
  "sourceIdentifier": "security@progress.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        },
        {
          "lang": "en",
          "value": "CWE-73"
        }
      ],
      "source": "security@progress.com",
      "type": "Secondary"
    }
  ]
}

GHSA-8298-7W39-FVV4

Vulnerability from github – Published: 2026-10-29 18:31 – Updated: 2026-10-29 18:31

Details

Severity

5.3 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-90871"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-29T16:20:05Z",
    "severity": "MODERATE"
  },
  "details": "Improper limitation of a pathname to a restricted directory in Progress Software WS_FTP Server versions prior to 2024.0.7 and 2025.0.4 on Windows could allow an unauthenticated attacker to affect files outside the intended directory.",
  "id": "GHSA-8298-7w39-fvv4",
  "modified": "2026-10-29T18:31:07Z",
  "published": "2026-10-29T18:31:07Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90871"
    },
    {
      "type": "WEB",
      "url": "https://progress.lightning.force.com/lightning/r/Knowledge__kav/ka7Pb000001vl86IAA/view"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

Publication & reservation Sightings KEV catalogs Other timestamps

Loading timeline…

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-90871 (GCVE-0-2026-90871)

FKIE_CVE-2026-90871

GHSA-8298-7W39-FVV4

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour