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CVE-2014-2021

Status: ModifiedLow (3.5)—💥 Exploit

Cross-site scripting (XSS) vulnerability in admincp/apilog.php in vBulletin 4.2.2 and earlier, and 5.0.x through 5.0.5 allows remote authenticated users to inject arbitrary web script or HTML via a crafted XMLRPC API request, as demonstrated using the client name.

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).

💥 Public exploits

Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.

Affected technologies (1)

Vbulletin — Vbulletin

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2014-2021",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 3.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N",
          "authentication": "SINGLE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "LOW",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 6.8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2014-10-25T00:55:02.740",
  "references": [
    {
      "url": "http://packetstormsecurity.com/files/128691/vBulletin-5.x-4.x-Persistent-Cross-Site-Scripting.html",
      "tags": [
        "Exploit"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://seclists.org/fulldisclosure/2014/Oct/55",
      "tags": [
        "Exploit"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://seclists.org/fulldisclosure/2014/Oct/63",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/70577",
      "tags": [
        "Exploit"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securitytracker.com/id/1031000",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/97026",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/tintinweb/pub/tree/master/pocs/cve-2014-2021",
      "tags": [
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      "source": "cve@mitre.org"
    },
    {
      "url": "http://packetstormsecurity.com/files/128691/vBulletin-5.x-4.x-Persistent-Cross-Site-Scripting.html",
      "tags": [
        "Exploit"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://seclists.org/fulldisclosure/2014/Oct/55",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://seclists.org/fulldisclosure/2014/Oct/63",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/70577",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id/1031000",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/97026",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/tintinweb/pub/tree/master/pocs/cve-2014-2021",
      "tags": [
        "Exploit"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Cross-site scripting (XSS) vulnerability in admincp/apilog.php in vBulletin 4.2.2 and earlier, and 5.0.x through 5.0.5 allows remote authenticated users to inject arbitrary web script or HTML via a crafted XMLRPC API request, as demonstrated using the client name."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de XSS en admincp/apilog.php en vBulletin 4.2.2 y versiones anteriores y 5.0.x hasta la versión 5.0.5 permite a usuarios remotos autenticados inyectar secuencias de comandos web o HTML arbitrarios a través de una petición API XMLRPC manipulada, según lo demostrado usando el nombre client."
    }
  ],
  "lastModified": "2026-06-17T00:05:56.570",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "vulnerable": true,
              "matchCriteriaId": "B8428355-3FA6-4AF5-BF44-15546E60DA43",
              "versionEndIncluding": "4.2.2"
            },
            {
              "criteria": "cpe:2.3:a:vbulletin:vbulletin:5.0.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "8006A061-0338-42C7-B8B8-BCD3122C8CAE"
            },
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              "vulnerable": true,
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            },
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              "vulnerable": true,
              "matchCriteriaId": "C06FA106-6A5A-4C88-A79B-69CDBE34F7C1"
            },
            {
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              "vulnerable": true,
              "matchCriteriaId": "57B7913E-2449-4638-9D13-01F56324D68C"
            },
            {
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              "matchCriteriaId": "A6A94474-EB3E-45B8-8790-75554BB1F068"
            },
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              "matchCriteriaId": "607D650E-AFEB-47F8-90C1-C8BA132659C7"
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          "operator": "OR"
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  "sourceIdentifier": "cve@mitre.org"
}