GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2026-42736 (GCVE-0-2026-42736)

Vulnerability from cvelistv5 – Published: 2026-05-27 09:49 – Updated: 2026-05-27 10:52
VLAI
Title
WordPress BP Better Messages plugin <= 2.14.16 - Insecure Direct Object References (IDOR) vulnerability
Summary
Authorization Bypass Through User-Controlled Key vulnerability in wordplus BP Better Messages bp-better-messages allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects BP Better Messages: from n/a through <= 2.14.16.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-27 10:45 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
Impacted products
Vendor Product Version CPE status
wordplus BP Better Messages Affected: 0 , ≤ 2.14.16 (custom)
guessed Create a notification for this product.
Date Public
2026-05-27 11:08
Credits
dodoh4t | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-42736",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-27T10:45:42.089341Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-27T10:52:23.925Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://wordpress.org/plugins",
          "defaultStatus": "unaffected",
          "packageName": "bp-better-messages",
          "product": "BP Better Messages",
          "vendor": "wordplus",
          "versions": [
            {
              "changes": [
                {
                  "at": "2.15.0",
                  "status": "unaffected"
                }
              ],
              "lessThanOrEqual": "2.14.16",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "dodoh4t | Patchstack Bug Bounty Program"
        }
      ],
      "datePublic": "2026-05-27T11:08:50.046Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Authorization Bypass Through User-Controlled Key vulnerability in wordplus BP Better Messages bp-better-messages allows Exploiting Incorrectly Configured Access Control Security Levels.\u003cp\u003eThis issue affects BP Better Messages: from n/a through \u003c= 2.14.16.\u003c/p\u003e"
            }
          ],
          "value": "Authorization Bypass Through User-Controlled Key vulnerability in wordplus BP Better Messages bp-better-messages allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects BP Better Messages: from n/a through \u003c= 2.14.16."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-180",
          "descriptions": [
            {
              "lang": "en",
              "value": "Exploiting Incorrectly Configured Access Control Security Levels"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-639",
              "description": "Authorization Bypass Through User-Controlled Key",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-27T09:49:04.452Z",
        "orgId": "21595511-bba5-4825-b968-b78d1f9984a3",
        "shortName": "Patchstack"
      },
      "references": [
        {
          "tags": [
            "vdb-entry"
          ],
          "url": "https://patchstack.com/database/Wordpress/Plugin/bp-better-messages/vulnerability/wordpress-bp-better-messages-plugin-2-14-16-insecure-direct-object-references-idor-vulnerability?_s_id=cve"
        }
      ],
      "title": "WordPress BP Better Messages plugin \u003c= 2.14.16 - Insecure Direct Object References (IDOR) vulnerability"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "21595511-bba5-4825-b968-b78d1f9984a3",
    "assignerShortName": "Patchstack",
    "cveId": "CVE-2026-42736",
    "datePublished": "2026-05-27T09:49:04.452Z",
    "dateReserved": "2026-04-29T09:05:25.570Z",
    "dateUpdated": "2026-05-27T10:52:23.925Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-42736",
      "date": "2026-09-17",
      "epss": "0.00256",
      "percentile": "0.17446"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-42736\",\"sourceIdentifier\":\"audit@patchstack.com\",\"published\":\"2026-05-27T11:16:20.233\",\"lastModified\":\"2026-06-17T10:48:18.753\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Authorization Bypass Through User-Controlled Key vulnerability in wordplus BP Better Messages bp-better-messages allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects BP Better Messages: from n/a through \u003c= 2.14.16.\"}],\"affected\":[{\"source\":\"audit@patchstack.com\",\"affectedData\":[{\"vendor\":\"wordplus\",\"product\":\"BP Better Messages\",\"defaultStatus\":\"unaffected\",\"collectionURL\":\"https://wordpress.org/plugins\",\"packageName\":\"bp-better-messages\",\"versions\":[{\"version\":\"0\",\"lessThanOrEqual\":\"2.14.16\",\"versionType\":\"custom\",\"status\":\"affected\",\"changes\":[{\"at\":\"2.15.0\",\"status\":\"unaffected\"}]}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"audit@patchstack.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-05-27T10:45:42.089341Z\",\"id\":\"CVE-2026-42736\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"yes\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"audit@patchstack.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-639\"}]}],\"references\":[{\"url\":\"https://patchstack.com/database/Wordpress/Plugin/bp-better-messages/vulnerability/wordpress-bp-better-messages-plugin-2-14-16-insecure-direct-object-references-idor-vulnerability?_s_id=cve\",\"source\":\"audit@patchstack.com\"}]}}",
    "redhat_vex": {
      "current_release_date": "2026-06-05T19:15:49+00:00",
      "cve": "CVE-2026-42736",
      "id": "CVE-2026-42736",
      "initial_release_date": "2026-05-27T11:08:50.046000+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "WordPress BP Better Messages plugin \u003c= 2.14.16 - Insecure Direct Object References (IDOR) vulnerability",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42736.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-42736\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-05-27T10:45:42.089341Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-05-27T10:52:19.368Z\"}}], \"cna\": {\"title\": \"WordPress BP Better Messages plugin \u003c= 2.14.16 - Insecure Direct Object References (IDOR) vulnerability\", \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"dodoh4t | Patchstack Bug Bounty Program\"}], \"impacts\": [{\"capecId\": \"CAPEC-180\", \"descriptions\": [{\"lang\": \"en\", \"value\": \"Exploiting Incorrectly Configured Access Control Security Levels\"}]}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.5, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"wordplus\", \"product\": \"BP Better Messages\", \"versions\": [{\"status\": \"affected\", \"changes\": [{\"at\": \"2.15.0\", \"status\": \"unaffected\"}], \"version\": \"0\", \"versionType\": \"custom\", \"lessThanOrEqual\": \"2.14.16\"}], \"packageName\": \"bp-better-messages\", \"collectionURL\": \"https://wordpress.org/plugins\", \"defaultStatus\": \"unaffected\"}], \"datePublic\": \"2026-05-27T11:08:50.046Z\", \"references\": [{\"url\": \"https://patchstack.com/database/Wordpress/Plugin/bp-better-messages/vulnerability/wordpress-bp-better-messages-plugin-2-14-16-insecure-direct-object-references-idor-vulnerability?_s_id=cve\", \"tags\": [\"vdb-entry\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Authorization Bypass Through User-Controlled Key vulnerability in wordplus BP Better Messages bp-better-messages allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects BP Better Messages: from n/a through \u003c= 2.14.16.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"Authorization Bypass Through User-Controlled Key vulnerability in wordplus BP Better Messages bp-better-messages allows Exploiting Incorrectly Configured Access Control Security Levels.\u003cp\u003eThis issue affects BP Better Messages: from n/a through \u003c= 2.14.16.\u003c/p\u003e\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-639\", \"description\": \"Authorization Bypass Through User-Controlled Key\"}]}], \"providerMetadata\": {\"orgId\": \"21595511-bba5-4825-b968-b78d1f9984a3\", \"shortName\": \"Patchstack\", \"dateUpdated\": \"2026-05-27T09:49:04.452Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-42736\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-27T10:52:23.925Z\", \"dateReserved\": \"2026-04-29T09:05:25.570Z\", \"assignerOrgId\": \"21595511-bba5-4825-b968-b78d1f9984a3\", \"datePublished\": \"2026-05-27T09:49:04.452Z\", \"assignerShortName\": \"Patchstack\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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

Author Source Type Date Other

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.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.