nvd-json-data-feeds/CVE-2021/CVE-2021-423xx/CVE-2021-42360.json

{
  "id": "CVE-2021-42360",
  "sourceIdentifier": "security@wordfence.com",
  "published": "2021-11-17T18:15:08.227",
  "lastModified": "2024-11-21T06:27:39.530",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "On sites that also had the Elementor plugin for WordPress installed, it was possible for users with the edit_posts capability, which includes Contributor-level users, to import blocks onto any page using the astra-page-elementor-batch-process AJAX action. An attacker could craft and host a block containing malicious JavaScript on a server they controlled, and then use it to overwrite any post or page by sending an AJAX request with the action set to astra-page-elementor-batch-process and the url parameter pointed to their remotely-hosted malicious block, as well as an id parameter containing the post or page to overwrite. Any post or page that had been built with Elementor, including published pages, could be overwritten by the imported block, and the malicious JavaScript in the imported block would then be executed in the browser of any visitors to that page."
    },
    {
      "lang": "es",
      "value": "En los sitios que tambi\u00e9n ten\u00edan instalado el plugin de Elementor para WordPress, era posible que usuarios con la capacidad edit_posts, que incluye a usuarios de nivel Contributor, importaran bloques en cualquier p\u00e1gina usando la acci\u00f3n AJAX astra-page-elementor-batch-process. Un atacante pod\u00eda dise\u00f1ar y alojar un bloque que contuviera JavaScript malicioso en un servidor que controlara, y luego usarlo para sobrescribir cualquier publicaci\u00f3n o p\u00e1gina enviando una petici\u00f3n AJAX con la acci\u00f3n establecida como astra-page-elementor-batch-process y el par\u00e1metro url apuntando a su bloque malicioso alojado remotamente, as\u00ed como un par\u00e1metro id que contuviera la publicaci\u00f3n o p\u00e1gina a sobrescribir. Cualquier entrada o p\u00e1gina construida con Elementor, incluidas las p\u00e1ginas publicadas, pod\u00eda ser sobrescrita por el bloque importado, y el JavaScript malicioso del bloque importado era ejecutado entonces en el navegador de cualquier visitante de esa p\u00e1gina"
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "security@wordfence.com",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L",
          "baseScore": 7.6,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "HIGH",
          "availabilityImpact": "LOW"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 4.7
      },
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
          "baseScore": 5.4,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "REQUIRED",
          "scope": "CHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 2.3,
        "impactScore": 2.7
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N",
          "baseScore": 3.5,
          "accessVector": "NETWORK",
          "accessComplexity": "MEDIUM",
          "authentication": "SINGLE",
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "NONE"
        },
        "baseSeverity": "LOW",
        "exploitabilityScore": 6.8,
        "impactScore": 2.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "security@wordfence.com",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        },
        {
          "lang": "en",
          "value": "CWE-99"
        },
        {
          "lang": "en",
          "value": "CWE-284"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:brainstormforce:starter_templates:*:*:*:*:*:wordpress:*:*",
              "versionEndIncluding": "2.7.0",
              "matchCriteriaId": "9BC6AA65-6190-4F4A-A83E-9D68B81B8D49"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://www.wordfence.com/blog/2021/11/over-1-million-sites-impacted-by-vulnerability-in-starter-templates-plugin/",
      "source": "security@wordfence.com",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.wordfence.com/blog/2021/11/over-1-million-sites-impacted-by-vulnerability-in-starter-templates-plugin/",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ]
    }
  ]
}