Security advisory

{
  "id": "fb16aa45b2603bd5a6b283ab7bcf470e6e2977bcef1e102f32037b07011a3ccb",
  "url": "https://osv.dev/vulnerability/CVE-2021-40353",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-40353",
    "summary": "A SQL injection vulnerability exists in version 8.0 of openSIS when MySQL or MariaDB is used as the application database. An attacker can then issue the SQL command through the index.php USERNAME parameter. NOTE: this issue may exist because of an incomplete fix for CVE-2020-6637.",
    "evidence": "osv:CVE-2021-40353",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2021-40353",
      "aliases": [
        "CVE-2021-40353"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/OS4ED/openSIS-Classic",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0a2d61fff35900fc91566e6621d49959599bcb4e"
                },
                {
                  "last_affected": "0a2d61fff35900fc91566e6621d49959599bcb4e"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:os4ed:opensis:8.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "8.0"
                      },
                      {
                        "last_affected": "8.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "8.0",
            "V8.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-40353.json"
          }
        },
        {
          "ranges": [
            {
              "repo": "https://github.com/os4ed/opensis-classic",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0a2d61fff35900fc91566e6621d49959599bcb4e"
                },
                {
                  "last_affected": "0a2d61fff35900fc91566e6621d49959599bcb4e"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:os4ed:opensis:8.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "8.0"
                      },
                      {
                        "last_affected": "8.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "8.0",
            "V8.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-40353.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:39.425393792Z",
      "provider": "osv",
      "references": [
        "https://www.opensis.com/download/english",
        "https://github.com/5qu1n7/CVE-2021-40353"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-40353",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 434667,
  "published_at": "2021-09-01T01:15:07.027+00:00"
}