{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "0"
                  },
                  {
                    "last_affected": "0.8.5"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandardRange"
              },
              {
                "range": [
                  {
                    "fixed": "d84a912f3a06b141cc275bb07115a204e7f10128"
                  }
                ],
                "source": "REFERENCES_COMMIT"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "d84a912f3a06b141cc275bb07115a204e7f10128"
            }
          ],
          "repo": "https://github.com/vas3k/taxhacker",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-639"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/125xxx/CVE-2026-125749.json"
  },
  "details": "TaxHacker through 0.8.5 contains an insecure direct object reference vulnerability in app/(app)/settings/actions.ts that allows authenticated users to modify other users' data by supplying an arbitrary userId. Attackers can invoke Server Actions like deleteCategoryAction or editFieldAction with a victim's UUID to delete categories, clear transaction assignments, or alter LLM prompts.",
  "id": "CVE-2026-125749",
  "modified": "2026-11-14T02:30:37.182703130Z",
  "published": "2026-11-10T15:22:45.938Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/125xxx/CVE-2026-125749.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://hackmd.io/@hieund/taxhacker-settings-crud-actions-cross-user-authz"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-125749"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/taxhacker-through-0.8.5-idor-via-settings-server-actions-userid"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/vas3k/TaxHacker/issues/204"
    },
    {
      "type": "FIX",
      "url": "https://github.com/vas3k/TaxHacker/commit/d84a912f3a06b141cc275bb07115a204e7f10128"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/vas3k/TaxHacker"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/vas3k/TaxHacker/blob/v0.8.5/app/(app)/settings/actions.ts#L117-L306"
    },
    {
      "type": "EVIDENCE",
      "url": "https://hackmd.io/@hieund/cve-2026-125749-taxhacker-settings-crud-actions-cross-user-authz"
    }
  ],
  "schema_version": "1.9.2",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "TaxHacker through 0.8.5 IDOR via Settings Server Actions userId"
}