Security advisory

{
  "id": "f8a375f109987e5f986953a177f26cd6db3d6541e90c17ab2bb5a95fab937648",
  "url": "https://osv.dev/vulnerability/CVE-2020-13121",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-13121",
    "summary": "Submitty through 20.04.01 has an open redirect via authentication/login?old= during an invalid login attempt.",
    "evidence": "osv:CVE-2020-13121",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2020-13121",
      "aliases": [
        "CVE-2020-13121"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/submitty/submitty",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "0be840b60d5ffaf974f70f7dd9cbb67023af3b65"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:rcos:submitty:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "20.04.01"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v20.04.01",
            "v20.04.00",
            "v20.03.04",
            "v20.03.03",
            "v20.03.02",
            "v20.03.01",
            "v20.03.00",
            "v20.02.02",
            "v20.02.01",
            "v20.02.00",
            "v20.01.02",
            "v20.01.01",
            "v20.01.00",
            "v19.12.00",
            "v19.11.00",
            "v19.10.02",
            "v19.10.01",
            "v19.10.00",
            "v19.09.05",
            "v19.09.04",
            "v19.09.03",
            "v19.09.02",
            "v19.09.01",
            "v19.09.00",
            "v19.08.05",
            "v19.08.04",
            "v19.08.03",
            "v19.08.02",
            "v19.08.01",
            "v19.08.00",
            "v19.07.01",
            "v19.07.00",
            "v19.06.02",
            "v.19.06.01",
            "v.19.06.00",
            "v.18.06.00",
            "pre_migration",
            "v.1.1.0",
            "v.1.0.3",
            "v.1.0.2",
            "v.1.0.1",
            "v.1.0.0",
            "v.1.0",
            "0.4.3.1",
            "0.4.3",
            "0.4.2.1",
            "0.4.2",
            "0.4.1",
            "0.2.1",
            "0.2.0",
            "0.1.1/0.1.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-13121.json"
          }
        }
      ],
      "modified": "2026-10-20T10:51:57.075370941Z",
      "provider": "osv",
      "references": [
        "https://github.com/Submitty/Submitty/issues/5265"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-13121",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 383154,
  "published_at": "2020-05-16T20:15:12+00:00"
}