Security advisory

{
  "id": "a969c082b983d3e0066757c4fce81b6203d381dfd731b65a7ddae3bc7ac898e0",
  "url": "https://osv.dev/vulnerability/CVE-2021-3957",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-3957",
    "summary": "kimai2 is vulnerable to Cross-Site Request Forgery (CSRF)",
    "evidence": "osv:CVE-2021-3957",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-3957",
      "aliases": [
        "CVE-2021-3957",
        "GHSA-2xwq-h7r9-6w27"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/kimai/kimai",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "b28e9c120c87222e21a238f1b03a609d6a5d506e"
                },
                {
                  "fixed": "6b49535b523dcd36ec59462ee4e67e2b3a9151f3"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:kimai:kimai_2:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.16.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "6b49535b523dcd36ec59462ee4e67e2b3a9151f3"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.15.6",
            "1.15.5",
            "1.15.4",
            "1.15.3",
            "1.15.2",
            "1.15.1",
            "1.15",
            "1.14.3",
            "1.14.2",
            "1.14.1",
            "1.14",
            "1.13",
            "1.12",
            "1.11.1",
            "1.11",
            "1.10.2",
            "1.10.1",
            "1.10",
            "1.9",
            "1.8",
            "1.7",
            "1.6.2",
            "1.6.1",
            "1.6",
            "1.5",
            "1.4.2",
            "1.4.1",
            "1.4",
            "1.3",
            "1.2",
            "1.1",
            "1.0.1",
            "1.0",
            "0.9",
            "0.8.1",
            "0.8",
            "0.7",
            "0.6.1",
            "0.6",
            "0.5",
            "0.4",
            "0.3",
            "0.2",
            "0.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-3957.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:54.600399703Z",
      "provider": "osv",
      "references": [
        "https://github.com/kevinpapst/kimai2/commit/6b49535b523dcd36ec59462ee4e67e2b3a9151f3",
        "https://huntr.dev/bounties/5fa3098a-ba02-45e0-af56-645e34dbc691"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-3957",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 386436,
  "published_at": "2021-11-19T12:15:08.977+00:00"
}