Xibo CMS has Preview and SavedReport IDOR via disableUserCheck without controller-level authorization

{
  "id": "b5d8e37af52629aac0f68e08829bfef8b92a8121ece2ad3ac00c1b9224bd73e4",
  "url": "https://osv.dev/vulnerability/CVE-2026-31956",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Xibo CMS has Preview and SavedReport IDOR via disableUserCheck without controller-level authorization",
    "summary": "Xibo is an open source digital signage platform with a web content management system and Windows display player software. Prior to version 4.4.1, any authenticated user can manually construct a URL to preview campaigns/regions, and export saved reports belonging to other users. Exploitation of the vulnerability is possible on behalf of an authorized user who has any of the following privileges: Page which shows all Layouts that have been created for the purposes of Layout Management; page which shows all Campaigns that have been created for the purposes of Campaign Management; and page which shows all Reports that have been Saved. Users should upgrade to version 4.4.1 which fixes this issue. Upgrading to a fixed version is necessary to remediate.",
    "evidence": "osv:CVE-2026-31956",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-31956",
      "aliases": [
        "CVE-2026-31956",
        "GHSA-q6rv-8hhj-3fr8"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/xibosignage/xibo-cms",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "7ba8843c1f881e1c9bb0d37e60cdca98a0cec96c"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "4.4.1"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "fixed": "7ba8843c1f881e1c9bb0d37e60cdca98a0cec96c"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "4.4.1"
                  },
                  {
                    "cpe": "cpe:2.3:a:xibosignage:xibo:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "4.4.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "4.4.0",
            "4.3.1",
            "4.3.0",
            "4.2.3",
            "4.2.2",
            "4.2.1",
            "4.2.0",
            "4.1.2",
            "4.1.1",
            "4.1.0",
            "4.0.13",
            "4.0.12",
            "4.0.11",
            "4.0.10",
            "4.0.9",
            "4.0.8",
            "4.0.7",
            "4.0.6",
            "4.0.5",
            "4.0.4",
            "4.0.3",
            "4.0.2",
            "4.0.1",
            "4.0.0",
            "4.0.0-rc2",
            "4.0.0-rc1",
            "4.0.0-beta",
            "4.0.0-alpha2",
            "4.0.0-alpha",
            "3.1.0-beta",
            "3.1.0-alpha",
            "3.0.0-rc1",
            "3.0.0-beta",
            "3.0.0-alpha3",
            "3.0.0-alpha2",
            "3.0.0-alpha",
            "2.3.0-rc1",
            "2.3.0-beta",
            "2.3.0-alpha",
            "2.2.0-alpha",
            "2.2.0-rc1",
            "2.2.0-alpha2",
            "2.2.0-beta",
            "2.1.0-rc1",
            "2.1.0-beta",
            "2.1.0-alpha2",
            "2.1.0-alpha1",
            "2.0.0-rc1",
            "2.0.0-beta.2",
            "2.0.0-beta",
            "2.0.0-alpha1",
            "1.8.0",
            "1.8.0-rc3",
            "1.8.0-rc2",
            "1.8.0-rc1",
            "1.8.0-beta",
            "1.8.0-alpha3",
            "1.8.0-alpha2",
            "1.8.0-alpha",
            "1.7.0-alpha2",
            "1.7.0-alpha",
            "1.6.0-rc1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-31956.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:31.279138695Z",
      "provider": "osv",
      "references": [
        "https://github.com/xibosignage/xibo-cms/releases/tag/4.4.1",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31956.json",
        "https://github.com/xibosignage/xibo-cms/security/advisories/GHSA-q6rv-8hhj-3fr8",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-31956"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-639"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31956.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-31956",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 498100,
  "published_at": "2026-04-24T00:16:03.413+00:00"
}