Vulnerability-Lookup

GHSA-XXC8-GPG2-9W9F

Vulnerability from github – Published: 2023-10-20 09:30 – Updated: 2024-04-04 08:49

Details

The Essential Blocks plugin for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 4.2.0 via deserialization of untrusted input in the get_products function. This allows unauthenticated attackers to inject a PHP Object. No POP chain is present in the vulnerable plugin. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.

Severity

8.1 (High)


                  
                    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2023-4402"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-10-20T07:15:15Z",
    "severity": "CRITICAL"
  },
  "details": "The Essential Blocks plugin for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 4.2.0 via deserialization of untrusted input in the get_products function. This allows unauthenticated attackers to inject a PHP Object. No POP chain is present in the vulnerable plugin. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.",
  "id": "GHSA-xxc8-gpg2-9w9f",
  "modified": "2024-04-04T08:49:43Z",
  "published": "2023-10-20T09:30:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-4402"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/essential-blocks/trunk/includes/API/Product.php?rev=2950425#L49"
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/1ede7a25-9bb2-408e-b7fb-e5bd4f594351?source=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2023-4402 (GCVE-0-2023-4402)

Vulnerability from cvelistv5 – Published: 2023-10-20 06:35 – Updated: 2026-04-08 16:40

Title

Essential Blocks <= 4.2.0 - Unauthenticated PHP Object Injection via products

Summary

Severity

8.1 (High)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-02-05 18:35 UTC

CWE

CWE-502 - Deserialization of Untrusted Data

Assigner

Wordfence mitre root

References

2 references

URL	Tags
https://www.wordfence.com/threat-intel/vulnerabil…
https://plugins.trac.wordpress.org/browser/essent…

Impacted products

2 products

Vendor	Product	Version
wpdevteam	Essential Blocks Pro	Affected: 0 , ≤ 1.1.0 (semver)
wpdevteam	Gutenberg Essential Blocks – Page Builder for Gutenberg Blocks & Patterns	Affected: 0 , ≤ 4.2.0 (semver)

Credits

Marco Wotschka

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T07:24:04.668Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/1ede7a25-9bb2-408e-b7fb-e5bd4f594351?source=cve"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://plugins.trac.wordpress.org/browser/essential-blocks/trunk/includes/API/Product.php?rev=2950425#L49"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-4402",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-02-05T18:35:04.501670Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-02-05T19:11:12.696Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Essential Blocks Pro",
          "vendor": "wpdevteam",
          "versions": [
            {
              "lessThanOrEqual": "1.1.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        },
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          "defaultStatus": "unaffected",
          "product": "Gutenberg Essential Blocks \u2013 Page Builder for Gutenberg Blocks \u0026 Patterns",
          "vendor": "wpdevteam",
          "versions": [
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              "status": "affected",
              "version": "0",
              "versionType": "semver"
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      ],
      "credits": [
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          "lang": "en",
          "type": "finder",
          "value": "Marco Wotschka"
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        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
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      "problemTypes": [
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              "description": "CWE-502 Deserialization of Untrusted Data",
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      "providerMetadata": {
        "dateUpdated": "2026-04-08T16:40:54.661Z",
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence"
      },
      "references": [
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          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/1ede7a25-9bb2-408e-b7fb-e5bd4f594351?source=cve"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/essential-blocks/trunk/includes/API/Product.php?rev=2950425#L49"
        }
      ],
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          "lang": "en",
          "time": "2023-08-17T00:00:00.000Z",
          "value": "Discovered"
        },
        {
          "lang": "en",
          "time": "2023-08-18T00:00:00.000Z",
          "value": "Vendor Notified"
        },
        {
          "lang": "en",
          "time": "2023-09-13T00:00:00.000Z",
          "value": "Disclosed"
        }
      ],
      "title": "Essential Blocks \u003c= 4.2.0 - Unauthenticated PHP Object Injection via products"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
    "assignerShortName": "Wordfence",
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    "datePublished": "2023-10-20T06:35:10.640Z",
    "dateReserved": "2023-08-17T15:45:30.445Z",
    "dateUpdated": "2026-04-08T16:40:54.661Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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.