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CVE-2026-18843 (GCVE-0-2026-18843)

Vulnerability from cvelistv5 – Published: 2026-09-05 06:37 – Updated: 2026-09-05 06:37
VLAI
Title
Beaver Builder Plugin (Pro Version) <= 2.11.0.1 - Reflected Cross-Site Scripting via 'no_results_message' node_preview Parameter
Summary
The Beaver Builder Plugin (Starter Version) plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via 'no_results_message' node_preview Parameter in all versions up to, and including, 2.11.0.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Impacted products
Vendor Product Version CPE status
The Beaver Builder Team Beaver Builder Plugin (Starter Version) Affected: 0 , ≤ 2.11.0.1 (semver)
guessed Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Beaver Builder Plugin (Starter Version)",
          "vendor": "The Beaver Builder Team",
          "versions": [
            {
              "lessThanOrEqual": "2.11.0.1",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Austin Ginder"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Beaver Builder Plugin (Starter Version) plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via \u0027no_results_message\u0027 node_preview Parameter in all versions up to, and including, 2.11.0.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 6.1,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "CWE-79 Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-05T06:37:55.073Z",
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence"
      },
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/074c95bb-c68e-452d-bd2e-c44866aeedba?source=cve"
        },
        {
          "url": "https://www.wpbeaverbuilder.com/"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-08-04T15:04:34.000Z",
          "value": "Vendor Notified"
        },
        {
          "lang": "en",
          "time": "2026-09-04T17:38:13.000Z",
          "value": "Disclosed"
        }
      ],
      "title": "Beaver Builder Plugin (Pro Version) \u003c= 2.11.0.1 - Reflected Cross-Site Scripting via \u0027no_results_message\u0027 node_preview Parameter"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
    "assignerShortName": "Wordfence",
    "cveId": "CVE-2026-18843",
    "datePublished": "2026-09-05T06:37:55.073Z",
    "dateReserved": "2026-08-04T14:49:21.064Z",
    "dateUpdated": "2026-09-05T06:37:55.073Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-18843",
      "date": "2026-09-06",
      "epss": "0.00168",
      "percentile": "0.06408"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-18843\",\"sourceIdentifier\":\"security@wordfence.com\",\"published\":\"2026-09-05T07:17:11.207\",\"lastModified\":\"2026-09-05T07:17:11.207\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The Beaver Builder Plugin (Starter Version) plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via \u0027no_results_message\u0027 node_preview Parameter in all versions up to, and including, 2.11.0.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.\"}],\"affected\":[{\"source\":\"security@wordfence.com\",\"affectedData\":[{\"vendor\":\"The Beaver Builder Team\",\"product\":\"Beaver Builder Plugin (Starter Version)\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"0\",\"lessThanOrEqual\":\"2.11.0.1\",\"versionType\":\"semver\",\"status\":\"affected\"}]}]}],\"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:C/C:L/I:L/A:N\",\"baseScore\":6.1,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.8,\"impactScore\":2.7}]},\"weaknesses\":[{\"source\":\"security@wordfence.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-79\"}]}],\"references\":[{\"url\":\"https://www.wordfence.com/threat-intel/vulnerabilities/id/074c95bb-c68e-452d-bd2e-c44866aeedba?source=cve\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://www.wpbeaverbuilder.com/\",\"source\":\"security@wordfence.com\"}]}}"
  }
}



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