FKIE_CVE-2026-71509

Vulnerability from fkie_nvd - Published: 2026-08-24 19:16 - Updated: 2026-10-12 22:10
Severity
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Summary
Dolibarr before 24.0.0 contains an improper authorization vulnerability in the expense report REST API update endpoint that allows authenticated attackers with expense-creation rights to bypass the approval workflow by directly setting approval status and approver identity fields. Attackers can manipulate workflow state fields through the REST API to advance expense reports to approved or closed status without possessing the dedicated approval right, while also creating forensic inconsistencies in audit records due to missing approval timestamps.
References
disclosure@vulncheck.comhttps://codeant.ai/security-research/cve-2026-71509-dolibarr-mass-assignment-lets-users-self-approve-expenses
disclosure@vulncheck.comhttps://github.com/Dolibarr/dolibarr/commit/9c4eb945321f823955879600e9dc58a44d249e44
disclosure@vulncheck.comhttps://github.com/Dolibarr/dolibarr/releases/tag/24.0.0
disclosure@vulncheck.comhttps://www.vulncheck.com/advisories/dolibarr-expense-report-rest-api-improper-authorization-via-update-endpoint
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "affected",
          "packageURL": "pkg:github/Dolibarr/dolibarr",
          "product": "dolibarr",
          "repo": "https://github.com/Dolibarr/dolibarr",
          "vendor": "Dolibarr",
          "versions": [
            {
              "lessThan": "24.0.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "disclosure@vulncheck.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Dolibarr before 24.0.0 contains an improper authorization vulnerability in the expense report REST API update endpoint that allows authenticated attackers with expense-creation rights to bypass the approval workflow by directly setting approval status and approver identity fields. Attackers can manipulate workflow state fields through the REST API to advance expense reports to approved or closed status without possessing the dedicated approval right, while also creating forensic inconsistencies in audit records due to missing approval timestamps."
    },
    {
      "lang": "es",
      "value": "Dolibarr anterior a la versi\u00f3n 24.0.0 contiene una vulnerabilidad de autorizaci\u00f3n impropia en el endpoint de actualizaci\u00f3n de la API REST del informe de gastos que permite a atacantes autenticados con derechos de creaci\u00f3n de gastos eludir el flujo de trabajo de aprobaci\u00f3n al establecer directamente el estado de aprobaci\u00f3n y los campos de identidad del aprobador. Los atacantes pueden manipular los campos de estado del flujo de trabajo a trav\u00e9s de la API REST para avanzar los informes de gastos a estado aprobado o cerrado sin poseer el derecho de aprobaci\u00f3n dedicado, mientras que tambi\u00e9n crean inconsistencias forenses en los registros de auditor\u00eda debido a la falta de marcas de tiempo de aprobaci\u00f3n."
    }
  ],
  "id": "CVE-2026-71509",
  "lastModified": "2026-10-12T22:10:00.247",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "disclosure@vulncheck.com",
        "type": "Secondary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "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",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "LOW",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "HIGH",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "disclosure@vulncheck.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-71509",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-27T14:11:29.853524Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-24T19:16:50.403",
  "references": [
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://codeant.ai/security-research/cve-2026-71509-dolibarr-mass-assignment-lets-users-self-approve-expenses"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/Dolibarr/dolibarr/commit/9c4eb945321f823955879600e9dc58a44d249e44"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/Dolibarr/dolibarr/releases/tag/24.0.0"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://www.vulncheck.com/advisories/dolibarr-expense-report-rest-api-improper-authorization-via-update-endpoint"
    }
  ],
  "sourceIdentifier": "disclosure@vulncheck.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ],
      "source": "disclosure@vulncheck.com",
      "type": "Secondary"
    }
  ]
}



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