{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "ZKTeco ZKBioSecurity",
          "vendor": "ZKTeco Inc.",
          "versions": [
            {
              "status": "affected",
              "version": "3.0.1.0_R_230"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "LiquidWorm as Gjoko Krstic of Zero Science Lab"
        }
      ],
      "datePublic": "2016-08-31T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "ZKTeco ZKBioSecurity 3.0 contains a cross-site request forgery vulnerability that allows attackers to perform administrative actions by tricking logged-in users into visiting malicious websites. Attackers can craft HTTP requests that add superadmin accounts without validity checks, enabling unauthorized administrative access when authenticated users visit attacker-controlled pages."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "LOW",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "LOW",
            "subConfidentialityImpact": "LOW",
            "subIntegrityImpact": "LOW",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "LOW",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS"
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-352",
              "description": "Cross-Site Request Forgery (CSRF)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-03-15T13:35:23.779Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "Zero Science Lab Disclosure",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.zeroscience.mk/en/vulnerabilities/ZSL-2016-5364.php"
        },
        {
          "name": "CXSecurity",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://cxsecurity.com/issue/WLB-2016080268"
        },
        {
          "name": "IBM X-Force Exchange",
          "tags": [
            "vdb-entry"
          ],
          "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/116477"
        },
        {
          "name": "Packet Storm Security",
          "tags": [
            "exploit"
          ],
          "url": "https://packetstormsecurity.com/files/138569"
        },
        {
          "name": "Reference",
          "tags": [
            "exploit"
          ],
          "url": "https://www.exploit-db.com/exploits/40325/"
        },
        {
          "name": "VulnCheck Advisory: ZKTeco ZKBioSecurity 3.0 Cross-Site Request Forgery Superadmin",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/zkteco-zkbiosecurity-cross-site-request-forgery-superadmin"
        }
      ],
      "title": "ZKTeco ZKBioSecurity 3.0 Cross-Site Request Forgery Superadmin",
      "x_generator": {
        "engine": "vulncheck"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2016-20028",
    "datePublished": "2026-03-15T13:35:23.779Z",
    "dateReserved": "2026-03-15T12:36:51.756Z",
    "dateUpdated": "2026-03-15T13:35:23.779Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}