mayswind ezBookkeeping 1.2.0 before 2.0.1 Privilege Escalation via Token Refresh Endpoint

{
  "id": "ce42a5552092b0e7e79496dce32391784cfbbc2b1599181aff40590901addd08",
  "url": "https://osv.dev/vulnerability/CVE-2026-105131",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "mayswind ezBookkeeping 1.2.0 before 2.0.1 Privilege Escalation via Token Refresh Endpoint",
    "summary": "ezBookkeeping 1.2.0 before 2.0.1 contains a privilege escalation vulnerability that allows attackers holding an API token to obtain a full session token via /api/v1/tokens/refresh.json. Because TokenRefreshHandler never checks token type, attackers can exchange short-lived or IP-restricted API tokens for 30-day normal session tokens that bypass API token expiry and allowlists.",
    "evidence": "osv:CVE-2026-105131",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-105131",
      "aliases": [
        "CVE-2026-105131",
        "GHSA-wq25-mpcf-2mfc"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/mayswind/ezbookkeeping",
              "type": "GIT",
              "events": [
                {
                  "introduced": "4c8bb5a0b7f5a40821fa666dc600caaccde8c1f0"
                },
                {
                  "fixed": "323cf0c683d7889ad0c28377039ced1a44167c1e"
                },
                {
                  "fixed": "9a92b07be8a7034665abfdb35b036210a1d57bf9"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "1.2.0"
                      },
                      {
                        "fixed": "2.0.1"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "fixed": "9a92b07be8a7034665abfdb35b036210a1d57bf9"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "323cf0c683d7889ad0c28377039ced1a44167c1e"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v2.0.1"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.0.0",
            "v1.6.0",
            "v1.5.1",
            "v1.5.0",
            "v1.4.0",
            "v1.3.2",
            "v1.3.1",
            "v1.3.0",
            "v1.2.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-105131.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:48.732167587Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/105xxx/CVE-2026-105131.json",
        "https://github.com/mayswind/ezbookkeeping/releases/tag/v2.0.1",
        "https://github.com/mayswind/ezbookkeeping/security/advisories/GHSA-wq25-mpcf-2mfc",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-105131",
        "https://www.vulncheck.com/advisories/mayswind-ezbookkeeping-1.2.0-before-2.0.1-privilege-escalation-via-token-refresh-endpoint",
        "https://github.com/mayswind/ezbookkeeping/commit/9a92b07be8a7034665abfdb35b036210a1d57bf9",
        "https://github.com/mayswind/ezbookkeeping",
        "https://github.com/mayswind/ezbookkeeping/blob/v2.0.0/pkg/api/tokens.go#L327-L380"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-863"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/105xxx/CVE-2026-105131.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-105131",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 516974,
  "published_at": "2026-10-04T01:20:29.985+00:00"
}