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

CVE-2023-27437 (GCVE-0-2023-27437)

Vulnerability from cvelistv5 – Published: 2024-06-03 21:59 – Updated: 2026-04-28 16:08
VLAI
Title
WordPress Event Espresso 4 Decaf plugin <= 4.10.44.decaf - Bypass vulnerability
Summary
Missing Authorization vulnerability in Event Espresso Event Espresso 4 Decaf allows Functionality Misuse.This issue affects Event Espresso 4 Decaf: from n/a through 4.10.44.Decaf.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-06-04 13:07 UTC
CWE
References
Impacted products
Vendor Product Version CPE status
Event Espresso Event Espresso 4 Decaf Affected: n/a , ≤ 4.10.44.decaf (custom)
guessed Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-27437",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-06-04T13:07:25.479150Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-06-04T17:24:59.444Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T12:09:43.471Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "vdb-entry",
              "x_transferred"
            ],
            "url": "https://patchstack.com/database/vulnerability/event-espresso-decaf/wordpress-event-espresso-4-decaf-plugin-4-10-44-decaf-bypass-vulnerability?_s_id=cve"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://wordpress.org/plugins",
          "defaultStatus": "unaffected",
          "packageName": "event-espresso-decaf",
          "product": "Event Espresso 4 Decaf",
          "vendor": "Event Espresso",
          "versions": [
            {
              "changes": [
                {
                  "at": "4.10.45.decaf",
                  "status": "unaffected"
                }
              ],
              "lessThanOrEqual": "4.10.44.decaf",
              "status": "affected",
              "version": "n/a",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "user": "00000000-0000-4000-9000-000000000000",
          "value": "yuyudhn (Patchstack Alliance)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Missing Authorization vulnerability in Event Espresso Event Espresso 4 Decaf allows Functionality Misuse.\u003cp\u003eThis issue affects Event Espresso 4 Decaf: from n/a through 4.10.44.Decaf.\u003c/p\u003e"
            }
          ],
          "value": "Missing Authorization vulnerability in Event Espresso Event Espresso 4 Decaf allows Functionality Misuse.This issue affects Event Espresso 4 Decaf: from n/a through 4.10.44.Decaf."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-212",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-212 Functionality Misuse"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 3.7,
            "baseSeverity": "LOW",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-862",
              "description": "CWE-862 Missing Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-28T16:08:13.460Z",
        "orgId": "21595511-bba5-4825-b968-b78d1f9984a3",
        "shortName": "Patchstack"
      },
      "references": [
        {
          "tags": [
            "vdb-entry"
          ],
          "url": "https://patchstack.com/database/vulnerability/event-espresso-decaf/wordpress-event-espresso-4-decaf-plugin-4-10-44-decaf-bypass-vulnerability?_s_id=cve"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Update to 4.10.45.decaf or a higher version."
            }
          ],
          "value": "Update to 4.10.45.decaf or a higher version."
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "WordPress Event Espresso 4 Decaf plugin \u003c= 4.10.44.decaf - Bypass vulnerability",
      "x_generator": {
        "engine": "Vulnogram 0.1.0-dev"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "21595511-bba5-4825-b968-b78d1f9984a3",
    "assignerShortName": "Patchstack",
    "cveId": "CVE-2023-27437",
    "datePublished": "2024-06-03T21:59:11.338Z",
    "dateReserved": "2023-03-01T14:31:48.073Z",
    "dateUpdated": "2026-04-28T16:08:13.460Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2023-27437",
      "date": "2026-09-17",
      "epss": "0.00313",
      "percentile": "0.24263"
    },
    "fkie_nvd": {
      "descriptions": "[{\"lang\": \"en\", \"value\": \"Missing Authorization vulnerability in Event Espresso Event Espresso 4 Decaf allows Functionality Misuse.This issue affects Event Espresso 4 Decaf: from n/a through 4.10.44.Decaf.\"}, {\"lang\": \"es\", \"value\": \"Vulnerabilidad de falta de autorizaci\\u00f3n en Event Espresso Event Espresso 4 Decaf permite un uso indebido de la funcionalidad. Este problema afecta a Event Espresso 4 Decaf: desde n/a hasta 4.10.44.Decaf.\"}]",
      "id": "CVE-2023-27437",
      "lastModified": "2024-11-21T07:52:54.700",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"audit@patchstack.com\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N\", \"baseScore\": 3.7, \"baseSeverity\": \"LOW\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"LOW\", \"availabilityImpact\": \"NONE\"}, \"exploitabilityScore\": 2.2, \"impactScore\": 1.4}]}",
      "published": "2024-06-03T22:15:10.357",
      "references": "[{\"url\": \"https://patchstack.com/database/vulnerability/event-espresso-decaf/wordpress-event-espresso-4-decaf-plugin-4-10-44-decaf-bypass-vulnerability?_s_id=cve\", \"source\": \"audit@patchstack.com\"}, {\"url\": \"https://patchstack.com/database/vulnerability/event-espresso-decaf/wordpress-event-espresso-4-decaf-plugin-4-10-44-decaf-bypass-vulnerability?_s_id=cve\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}]",
      "sourceIdentifier": "audit@patchstack.com",
      "vulnStatus": "Awaiting Analysis",
      "weaknesses": "[{\"source\": \"audit@patchstack.com\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-862\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-27437\",\"sourceIdentifier\":\"audit@patchstack.com\",\"published\":\"2024-06-03T22:15:10.357\",\"lastModified\":\"2026-06-17T05:45:10.487\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Missing Authorization vulnerability in Event Espresso Event Espresso 4 Decaf allows Functionality Misuse.This issue affects Event Espresso 4 Decaf: from n/a through 4.10.44.Decaf.\"},{\"lang\":\"es\",\"value\":\"Vulnerabilidad de falta de autorizaci\u00f3n en Event Espresso Event Espresso 4 Decaf permite un uso indebido de la funcionalidad. Este problema afecta a Event Espresso 4 Decaf: desde n/a hasta 4.10.44.Decaf.\"}],\"affected\":[{\"source\":\"audit@patchstack.com\",\"affectedData\":[{\"vendor\":\"Event Espresso\",\"product\":\"Event Espresso 4 Decaf\",\"defaultStatus\":\"unaffected\",\"collectionURL\":\"https://wordpress.org/plugins\",\"packageName\":\"event-espresso-decaf\",\"versions\":[{\"version\":\"n/a\",\"lessThanOrEqual\":\"4.10.44.decaf\",\"versionType\":\"custom\",\"status\":\"affected\",\"changes\":[{\"at\":\"4.10.45.decaf\",\"status\":\"unaffected\"}]}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"audit@patchstack.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N\",\"baseScore\":3.7,\"baseSeverity\":\"LOW\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.2,\"impactScore\":1.4}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2024-06-04T13:07:25.479150Z\",\"id\":\"CVE-2023-27437\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"audit@patchstack.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-862\"}]}],\"references\":[{\"url\":\"https://patchstack.com/database/vulnerability/event-espresso-decaf/wordpress-event-espresso-4-decaf-plugin-4-10-44-decaf-bypass-vulnerability?_s_id=cve\",\"source\":\"audit@patchstack.com\"},{\"url\":\"https://patchstack.com/database/vulnerability/event-espresso-decaf/wordpress-event-espresso-4-decaf-plugin-4-10-44-decaf-bypass-vulnerability?_s_id=cve\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}",
    "redhat_vex": {
      "current_release_date": "2025-05-29T00:01:31+00:00",
      "cve": "CVE-2023-27437",
      "id": "CVE-2023-27437",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "WordPress Event Espresso 4 Decaf plugin \u003c= 4.10.44.decaf - Bypass vulnerability",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-27437.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://patchstack.com/database/vulnerability/event-espresso-decaf/wordpress-event-espresso-4-decaf-plugin-4-10-44-decaf-bypass-vulnerability?_s_id=cve\", \"tags\": [\"vdb-entry\", \"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T12:09:43.471Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-27437\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-06-04T13:07:25.479150Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-06-04T13:07:30.930Z\"}}], \"cna\": {\"title\": \"WordPress Event Espresso 4 Decaf plugin \u003c= 4.10.44.decaf - Bypass vulnerability\", \"source\": {\"discovery\": \"EXTERNAL\"}, \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"user\": \"00000000-0000-4000-9000-000000000000\", \"value\": \"yuyudhn (Patchstack Alliance)\"}], \"impacts\": [{\"capecId\": \"CAPEC-212\", \"descriptions\": [{\"lang\": \"en\", \"value\": \"CAPEC-212 Functionality Misuse\"}]}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 3.7, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"LOW\", \"vectorString\": \"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N\", \"integrityImpact\": \"LOW\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"HIGH\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"NONE\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"Event Espresso\", \"product\": \"Event Espresso 4 Decaf\", \"versions\": [{\"status\": \"affected\", \"changes\": [{\"at\": \"4.10.45.decaf\", \"status\": \"unaffected\"}], \"version\": \"n/a\", \"versionType\": \"custom\", \"lessThanOrEqual\": \"4.10.44.decaf\"}], \"packageName\": \"event-espresso-decaf\", \"collectionURL\": \"https://wordpress.org/plugins\", \"defaultStatus\": \"unaffected\"}], \"solutions\": [{\"lang\": \"en\", \"value\": \"Update to 4.10.45.decaf or a higher version.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"Update to 4.10.45.decaf or a higher version.\", \"base64\": false}]}], \"references\": [{\"url\": \"https://patchstack.com/database/vulnerability/event-espresso-decaf/wordpress-event-espresso-4-decaf-plugin-4-10-44-decaf-bypass-vulnerability?_s_id=cve\", \"tags\": [\"vdb-entry\"]}], \"x_generator\": {\"engine\": \"Vulnogram 0.1.0-dev\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"Missing Authorization vulnerability in Event Espresso Event Espresso 4 Decaf allows Functionality Misuse.This issue affects Event Espresso 4 Decaf: from n/a through 4.10.44.Decaf.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"Missing Authorization vulnerability in Event Espresso Event Espresso 4 Decaf allows Functionality Misuse.\u003cp\u003eThis issue affects Event Espresso 4 Decaf: from n/a through 4.10.44.Decaf.\u003c/p\u003e\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-862\", \"description\": \"CWE-862 Missing Authorization\"}]}], \"providerMetadata\": {\"orgId\": \"21595511-bba5-4825-b968-b78d1f9984a3\", \"shortName\": \"Patchstack\", \"dateUpdated\": \"2024-06-03T21:59:11.338Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-27437\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-08-02T12:09:43.471Z\", \"dateReserved\": \"2023-03-01T14:31:48.073Z\", \"assignerOrgId\": \"21595511-bba5-4825-b968-b78d1f9984a3\", \"datePublished\": \"2024-06-03T21:59:11.338Z\", \"assignerShortName\": \"Patchstack\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

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.

Loading…

Detection rules are retrieved from Rulezet.

Loading…

Loading…

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.


Loading…