{
  "id": "CVE-2021-4400",
  "sourceIdentifier": "security@wordfence.com",
  "published": "2023-07-01T06:15:09.987",
  "lastModified": "2024-11-21T06:37:36.677",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Better Search plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 2.5.2. This is due to missing or incorrect nonce validation on the bsearch_process_settings_import() and bsearch_process_settings_export() functions. This makes it possible for unauthenticated attackers to import and export settings via a forged request granted they can trick a site administrator into performing an action such as clicking on a link."
    },
    {
      "lang": "es",
      "value": "El plugin Better Search para WordPress es vulnerable a ataques de tipo Cross-Site Request Forgery (CSRF) en versiones hasta la 2.5.2 inclusive. Esto se debe a la falta o incorrecta validaci\u00f3n nonce en las funciones \"bsearch_process_settings_import()\" y \"bsearch_process_settings_export()\". Esto hace posible que atacantes no autenticados importen y exporten configuraciones a trav\u00e9s de una solicitud manipulada concedida y puedan enga\u00f1ar a un administrador del sitio para que realice una acci\u00f3n como hacer clic en un enlace. "
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "security@wordfence.com",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N",
          "baseScore": 4.3,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 1.4
      }
    ]
  },
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:webberzone:better_search:*:*:*:*:*:wordpress:*:*",
              "versionEndIncluding": "2.5.2",
              "matchCriteriaId": "50A863C7-85E4-4678-BA94-37379FC27FE9"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://blog.nintechnet.com/25-wordpress-plugins-vulnerable-to-csrf-attacks/",
      "source": "security@wordfence.com",
      "tags": [
        "Not Applicable"
      ]
    },
    {
      "url": "https://blog.nintechnet.com/more-wordpress-plugins-and-themes-vulnerable-to-csrf-attacks/",
      "source": "security@wordfence.com",
      "tags": [
        "Not Applicable"
      ]
    },
    {
      "url": "https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-1/",
      "source": "security@wordfence.com",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-2/",
      "source": "security@wordfence.com",
      "tags": [
        "Not Applicable"
      ]
    },
    {
      "url": "https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-3/",
      "source": "security@wordfence.com",
      "tags": [
        "Not Applicable"
      ]
    },
    {
      "url": "https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-4/",
      "source": "security@wordfence.com",
      "tags": [
        "Not Applicable"
      ]
    },
    {
      "url": "https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-5/",
      "source": "security@wordfence.com",
      "tags": [
        "Not Applicable"
      ]
    },
    {
      "url": "https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2473344%40better-search&new=2473344%40better-search&sfp_email=&sfph_mail=",
      "source": "security@wordfence.com",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/7acbcf74-2bae-412b-bf9d-70287a91deea?source=cve",
      "source": "security@wordfence.com",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://blog.nintechnet.com/25-wordpress-plugins-vulnerable-to-csrf-attacks/",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Not Applicable"
      ]
    },
    {
      "url": "https://blog.nintechnet.com/more-wordpress-plugins-and-themes-vulnerable-to-csrf-attacks/",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Not Applicable"
      ]
    },
    {
      "url": "https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-1/",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-2/",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Not Applicable"
      ]
    },
    {
      "url": "https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-3/",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Not Applicable"
      ]
    },
    {
      "url": "https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-4/",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Not Applicable"
      ]
    },
    {
      "url": "https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-5/",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Not Applicable"
      ]
    },
    {
      "url": "https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2473344%40better-search&new=2473344%40better-search&sfp_email=&sfph_mail=",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/7acbcf74-2bae-412b-bf9d-70287a91deea?source=cve",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ]
    }
  ]
}