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CVE-2023-4309

Status: ModifiedCritical (9.8)—

Election Services Co. (ESC) Internet Election Service is vulnerable to SQL injection in multiple pages and parameters. These vulnerabilities allow an unauthenticated, remote attacker to read or modify data for any elections that share the same backend database. ESC deactivated older and unused elections and enabled web application firewall (WAF) protection for current and future elections on or around 2023-08-12.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Electionservicesco — Internet Election Service

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2023-4309",
  "cveTags": [
    {
      "tags": [
        "exclusively-hosted-service"
      ],
      "sourceIdentifier": "9119a7d8-5eab-497f-8521-727c672e3725"
    }
  ],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-4309",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-09-18T18:52:08.028644Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "9119a7d8-5eab-497f-8521-727c672e3725",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 10,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 6,
        "exploitabilityScore": 3.9
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
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          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
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      }
    ]
  },
  "affected": [
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      "affectedData": [
        {
          "vendor": "Election Services Co. (ESC)",
          "product": "Internet Election Service",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "versionType": "custom",
              "lessThanOrEqual": "2023-08-12"
            }
          ],
          "defaultStatus": "unknown"
        }
      ]
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  ],
  "published": "2023-10-10T18:15:19.173",
  "references": [
    {
      "url": "https://schemasecurity.co/private-elections.pdf",
      "source": "9119a7d8-5eab-497f-8521-727c672e3725"
    },
    {
      "url": "https://www.electionservicesco.com/pages/services_internet.php",
      "source": "9119a7d8-5eab-497f-8521-727c672e3725"
    },
    {
      "url": "https://www.youtube.com/watch?v=yeG1xZkHc64",
      "source": "9119a7d8-5eab-497f-8521-727c672e3725"
    },
    {
      "url": "https://schemasecurity.co/private-elections.pdf",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.electionservicesco.com/pages/services_internet.php",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.youtube.com/watch?v=yeG1xZkHc64",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "9119a7d8-5eab-497f-8521-727c672e3725",
      "description": [
        {
          "lang": "en",
          "value": "CWE-89"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-89"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Election Services Co. (ESC) Internet Election Service is vulnerable to SQL injection in multiple pages and parameters. These vulnerabilities allow an unauthenticated, remote attacker to read or modify data for any elections that share the same backend database. ESC deactivated older and unused elections and enabled web application firewall (WAF) protection for current and future elections on or around 2023-08-12.\n"
    },
    {
      "lang": "es",
      "value": "El servicio electoral de Internet de Election Services Co. (ESC) es vulnerable a la inyección de SQL en múltiples páginas y parámetros. Estas vulnerabilidades permiten que un atacante remoto no autenticado lea o modifique datos para cualquier elección que comparta la misma base de datos backend. ESC desactivó las elecciones antiguas y no utilizadas y habilitó la protección de firewall de aplicaciones web (WAF) para las elecciones actuales y futuras el 2023-08-12 o alrededor de esa fecha."
    }
  ],
  "lastModified": "2026-06-17T06:37:32.790",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:electionservicesco:internet_election_service:-:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "78627388-63C2-42E7-B55C-83A012931A9A"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "9119a7d8-5eab-497f-8521-727c672e3725"
}