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CVE-2026-52782

Full vulnerability record from the local CVENow database.

Description

OpenProject is open-source, web-based project management software. Prior to 17.3.3 and 17.4.1, there is an IDOR through /projects/<A>/settings/project_storages/<A_ps_id> via PATCH parameter "storages_project_storage[project_folder_id]" leads to Access to Unauthorized Resources. A project-admin in one project can hijack the managed Nextcloud or OneDrive folder of another project on the same storage by writing the victim project's project_folder_id into the attacker's Storages::ProjectStorage row. The next managed-folder sync overwrites the ACL on the referenced folder with the attacker project's user list. This vulnerability is fixed in 17.3.3 and 17.4.1.

Severity
CRITICAL
CVSS score
9.9 (v3.1)
Vulnerability status
Deferred
Source identifier
Published
2026-06-26 20:17:18.737000
Last modified
2026-10-25 17:10:00.197000
View original CVE JSON
{
  "id": "CVE-2026-52782",
  "sourceIdentifier": "[email protected]",
  "published": "2026-06-26T20:17:18.737",
  "lastModified": "2026-10-25T17:10:00.197",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "OpenProject is open-source, web-based project management software. Prior to 17.3.3 and 17.4.1, there is an IDOR through /projects/<A>/settings/project_storages/<A_ps_id> via PATCH parameter \"storages_project_storage[project_folder_id]\" leads to Access to Unauthorized Resources. A project-admin in one project can hijack the managed Nextcloud or OneDrive folder of another project on the same storage by writing the victim project's project_folder_id into the attacker's Storages::ProjectStorage row. The next managed-folder sync overwrites the ACL on the referenced folder with the attacker project's user list. This vulnerability is fixed in 17.3.3 and 17.4.1."
    },
    {
      "lang": "es",
      "value": "OpenProject es un software de gestión de proyectos de código abierto y basado en la web. Antes de las versiones 17.3.3 y 17.4.1, existe un IDOR a través de /projects/[A]/settings/project_storages/[A_ps_id] mediante el parámetro PATCH storages_project_storage[project_folder_id] que conduce al acceso a recursos no autorizados. Un administrador de proyecto en un proyecto puede secuestrar la carpeta gestionada de Nextcloud o OneDrive de otro proyecto en el mismo almacenamiento escribiendo el project_folder_id del proyecto víctima en la fila Storages::ProjectStorage del atacante. La siguiente sincronización de carpeta gestionada sobrescribe la ACL en la carpeta referenciada con la lista de usuarios del proyecto del atacante. Esta vulnerabilidad se corrige en las versiones 17.3.3 y 17.4.1."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "opf",
          "product": "openproject",
          "versions": [
            {
              "version": "< 17.3.3",
              "status": "affected"
            },
            {
              "version": ">= 17.4.0, < 17.4.1",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
          "baseScore": 9.9,
          "baseSeverity": "CRITICAL",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "CHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 3.1,
        "impactScore": 6.0
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-06-29T12:02:06.616305Z",
          "id": "CVE-2026-52782",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-639"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/opf/openproject/security/advisories/GHSA-3vpx-94qx-xpw6",
      "source": "[email protected]"
    }
  ]
}