Security advisory

{
  "id": "aa3528870b37894b2df566c02b8231a750e2002c1f5eab8df46d8e0412b6027d",
  "url": "https://osv.dev/vulnerability/CVE-2020-5222",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-5222",
    "summary": "Opencast before 7.6 and 8.1 enables a remember-me cookie based on a hash created from the username, password, and an additional system key. This means that an attacker getting access to a remember-me token for one server can get access to all servers which allow log-in using the same credentials without ever needing the credentials. This problem is fixed in Opencast 7.6 and Opencast 8.1",
    "evidence": "osv:CVE-2020-5222",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2020-5222",
      "aliases": [
        "CVE-2020-5222",
        "GHSA-mh8g-hprg-8363"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/opencast/opencast",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "6241ba154a6b364fea1928e52f8bf2a432934dc8"
                },
                {
                  "introduced": "5bb6a93a43a7f7c47f789e46e4018c80b8c54c8b"
                },
                {
                  "last_affected": "5bb6a93a43a7f7c47f789e46e4018c80b8c54c8b"
                },
                {
                  "fixed": "1a7172c95af8d542a77ae5b153e4c834dd4788a6"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:apereo:opencast:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "7.6"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:apereo:opencast:8.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "8.0"
                      },
                      {
                        "last_affected": "8.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "range": [
                      {
                        "fixed": "1a7172c95af8d542a77ae5b153e4c834dd4788a6"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "8.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-5222.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:22.038937493Z",
      "provider": "osv",
      "references": [
        "https://github.com/opencast/opencast/security/advisories/GHSA-mh8g-hprg-8363",
        "https://github.com/opencast/opencast/commit/1a7172c95af8d542a77ae5b153e4c834dd4788a6"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-5222",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 385203,
  "published_at": "2020-01-30T21:15:14.98+00:00"
}