CVE-2026-78466 (GCVE-0-2026-78466)

Vulnerability from cvelistv5 – Published: 2026-08-25 05:31 – Updated: 2026-08-25 05:31
VLAI
Title
Fluent Boards Pro <= 2.0.11 - Authenticated (Subscriber+) Insecure Direct Object Reference
Summary
The Fluent Boards Pro plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 2.0.11 due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with Subscriber-level access and above, to perform an unauthorized action.
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Impacted products
Vendor Product Version CPE status
Fluent Boars Fluent Boards Pro Affected: 0 , ≤ 2.0.11 (semver)
guessed Create a notification for this product.
Show details on NVD website

{
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          "product": "Fluent Boards Pro",
          "vendor": "Fluent Boars",
          "versions": [
            {
              "lessThanOrEqual": "2.0.11",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Ananda Dhakal"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Fluent Boards Pro plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 2.0.11 due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with Subscriber-level access and above, to perform an unauthorized action."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-639",
              "description": "CWE-639 Authorization Bypass Through User-Controlled Key",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-25T05:31:28.620Z",
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence"
      },
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/bec19d80-ba51-4ff8-a111-c2e45928fb51?source=cve"
        },
        {
          "url": "https://fluentboards.com/"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-08-24T00:00:00.000Z",
          "value": "Disclosed"
        }
      ],
      "title": "Fluent Boards Pro \u003c= 2.0.11 - Authenticated (Subscriber+) Insecure Direct Object Reference"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
    "assignerShortName": "Wordfence",
    "cveId": "CVE-2026-78466",
    "datePublished": "2026-08-25T05:31:28.620Z",
    "dateReserved": "2026-08-24T16:32:17.654Z",
    "dateUpdated": "2026-08-25T05:31:28.620Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-78466",
      "date": "2026-08-25",
      "epss": "0.00161",
      "percentile": "0.05525"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-78466\",\"sourceIdentifier\":\"security@wordfence.com\",\"published\":\"2026-08-25T06:19:00.227\",\"lastModified\":\"2026-08-25T06:19:00.227\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The Fluent Boards Pro plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 2.0.11 due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with Subscriber-level access and above, to perform an unauthorized action.\"}],\"affected\":[{\"source\":\"security@wordfence.com\",\"affectedData\":[{\"vendor\":\"Fluent Boars\",\"product\":\"Fluent Boards Pro\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"0\",\"lessThanOrEqual\":\"2.0.11\",\"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:L/UI:N/S:U/C:N/I:L/A:N\",\"baseScore\":4.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.8,\"impactScore\":1.4}]},\"weaknesses\":[{\"source\":\"security@wordfence.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-639\"}]}],\"references\":[{\"url\":\"https://fluentboards.com/\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://www.wordfence.com/threat-intel/vulnerabilities/id/bec19d80-ba51-4ff8-a111-c2e45928fb51?source=cve\",\"source\":\"security@wordfence.com\"}]}}"
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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