CVE-2021-24234

Estado: ModificadaMedia (6.1)—

The Search Forms page of the Ivory Search WordPress lugin before 4.6.1 did not properly sanitise the tab parameter before output it in the page, leading to a reflected Cross-Site Scripting issue when opening a malicious crafted link as a high privilege user. Knowledge of a form id is required to conduct the attack.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Puntuación base: 6.1

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 1.17%
Percentil entre todas las CVEs puntuadas: 66
Fecha de la puntuación: 6/10/2026

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Ivorysearch — Ivory Search

CWE

CWE-79

Referencias

JSON original (NVD)

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  "id": "CVE-2021-24234",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "CHANGED",
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          "baseScore": 6.1,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.7,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "contact@wpscan.com",
      "affectedData": [
        {
          "vendor": "Unknown",
          "product": "Ivory Search – WordPress Search Plugin",
          "versions": [
            {
              "status": "affected",
              "version": "4.6.1",
              "lessThan": "4.6.1",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-04-22T21:15:09.697",
  "references": [
    {
      "url": "https://wpscan.com/vulnerability/ecc620be-8e29-4860-9d32-86b5814a3835",
      "tags": [
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        "Third Party Advisory"
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      "source": "contact@wpscan.com"
    },
    {
      "url": "https://www.getastra.com/blog/911/plugin-exploit/reflected-xss-vulnerability-in-ivory-search-wp-plugin/",
      "tags": [
        "Third Party Advisory"
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      "source": "contact@wpscan.com"
    },
    {
      "url": "https://www.jinsonvarghese.com/reflected-xss-vulnerability-found-in-ivory-search-plugin/",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "contact@wpscan.com"
    },
    {
      "url": "https://wpscan.com/vulnerability/ecc620be-8e29-4860-9d32-86b5814a3835",
      "tags": [
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        "Third Party Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.getastra.com/blog/911/plugin-exploit/reflected-xss-vulnerability-in-ivory-search-wp-plugin/",
      "tags": [
        "Third Party Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "https://www.jinsonvarghese.com/reflected-xss-vulnerability-found-in-ivory-search-plugin/",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "contact@wpscan.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Search Forms page of the Ivory Search WordPress lugin before 4.6.1 did not properly sanitise the tab parameter before output it in the page, leading to a reflected Cross-Site Scripting issue when opening a malicious crafted link as a high privilege user. Knowledge of a form id is required to conduct the attack."
    },
    {
      "lang": "es",
      "value": "La página Search Forms del lugin Ivory Search WordPress versiones anteriores a 4.6.1, no saneaba apropiadamente el parámetro tab antes de mostrarlo en la página, conllevando a un problema de tipo Cross-Site Scripting reflejado cuando se abre un enlace diseñados malicioso como un usuario con privilegios elevados.&#xa0;Es requerido un conocimiento del id de formulario para conllevar el ataque"
    }
  ],
  "lastModified": "2026-06-17T03:39:40.707",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "criteria": "cpe:2.3:a:ivorysearch:ivory_search:*:*:*:*:*:wordpress:*:*",
              "vulnerable": true,
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              "versionEndExcluding": "4.6.1"
            }
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          "operator": "OR"
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    }
  ],
  "sourceIdentifier": "contact@wpscan.com"
}