Search criteria

2 vulnerabilities found for Custom Block Builder – Lazy Blocks by nko

CVE-2026-1560 (GCVE-0-2026-1560)

Vulnerability from nvd – Published: 2026-02-11 08:26 – Updated: 2026-02-11 15:44
VLAI?
Title
Custom Block Builder – Lazy Blocks <= 4.2.0 - Authenticated (Contributor+) Remote Code Execution
Summary
The Custom Block Builder – Lazy Blocks plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 4.2.0 via multiple functions in the 'LazyBlocks_Blocks' class. This makes it possible for authenticated attackers, with Contributor-level access and above, to execute code on the server.
Severity ?
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
Impacted products
Vendor Product Version
nko Custom Block Builder – Lazy Blocks Affected: * , ≤ 4.2.0 (semver)
Create a notification for this product.
Credits
Youssef Elouaer
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-1560",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-02-11T15:40:33.786012Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-02-11T15:44:32.463Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Custom Block Builder \u2013 Lazy Blocks",
          "vendor": "nko",
          "versions": [
            {
              "lessThanOrEqual": "4.2.0",
              "status": "affected",
              "version": "*",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Youssef Elouaer"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Custom Block Builder \u2013 Lazy Blocks plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 4.2.0 via multiple functions in the \u0027LazyBlocks_Blocks\u0027 class. This makes it possible for authenticated attackers, with Contributor-level access and above, to execute code on the server."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-94",
              "description": "CWE-94 Improper Control of Generation of Code (\u0027Code Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-11T08:26:27.556Z",
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence"
      },
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/b1853c88-277b-4955-b042-aeed1cffb49b?source=cve"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/lazy-blocks/trunk/classes/class-rest.php#L88"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/lazy-blocks/trunk/classes/class-blocks.php#L1637"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/lazy-blocks/trunk/classes/class-blocks.php#L766"
        },
        {
          "url": "https://plugins.trac.wordpress.org/changeset/3454012/"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-01-29T00:40:11.000Z",
          "value": "Vendor Notified"
        },
        {
          "lang": "en",
          "time": "2026-02-10T00:00:00.000Z",
          "value": "Disclosed"
        }
      ],
      "title": "Custom Block Builder \u2013 Lazy Blocks \u003c= 4.2.0 - Authenticated (Contributor+) Remote Code Execution"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
    "assignerShortName": "Wordfence",
    "cveId": "CVE-2026-1560",
    "datePublished": "2026-02-11T08:26:27.556Z",
    "dateReserved": "2026-01-28T19:28:12.274Z",
    "dateUpdated": "2026-02-11T15:44:32.463Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-1560 (GCVE-0-2026-1560)

Vulnerability from cvelistv5 – Published: 2026-02-11 08:26 – Updated: 2026-02-11 15:44
VLAI?
Title
Custom Block Builder – Lazy Blocks <= 4.2.0 - Authenticated (Contributor+) Remote Code Execution
Summary
The Custom Block Builder – Lazy Blocks plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 4.2.0 via multiple functions in the 'LazyBlocks_Blocks' class. This makes it possible for authenticated attackers, with Contributor-level access and above, to execute code on the server.
Severity ?
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
Impacted products
Vendor Product Version
nko Custom Block Builder – Lazy Blocks Affected: * , ≤ 4.2.0 (semver)
Create a notification for this product.
Credits
Youssef Elouaer
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-1560",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-02-11T15:40:33.786012Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-02-11T15:44:32.463Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Custom Block Builder \u2013 Lazy Blocks",
          "vendor": "nko",
          "versions": [
            {
              "lessThanOrEqual": "4.2.0",
              "status": "affected",
              "version": "*",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Youssef Elouaer"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Custom Block Builder \u2013 Lazy Blocks plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 4.2.0 via multiple functions in the \u0027LazyBlocks_Blocks\u0027 class. This makes it possible for authenticated attackers, with Contributor-level access and above, to execute code on the server."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-94",
              "description": "CWE-94 Improper Control of Generation of Code (\u0027Code Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-11T08:26:27.556Z",
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence"
      },
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/b1853c88-277b-4955-b042-aeed1cffb49b?source=cve"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/lazy-blocks/trunk/classes/class-rest.php#L88"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/lazy-blocks/trunk/classes/class-blocks.php#L1637"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/lazy-blocks/trunk/classes/class-blocks.php#L766"
        },
        {
          "url": "https://plugins.trac.wordpress.org/changeset/3454012/"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-01-29T00:40:11.000Z",
          "value": "Vendor Notified"
        },
        {
          "lang": "en",
          "time": "2026-02-10T00:00:00.000Z",
          "value": "Disclosed"
        }
      ],
      "title": "Custom Block Builder \u2013 Lazy Blocks \u003c= 4.2.0 - Authenticated (Contributor+) Remote Code Execution"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
    "assignerShortName": "Wordfence",
    "cveId": "CVE-2026-1560",
    "datePublished": "2026-02-11T08:26:27.556Z",
    "dateReserved": "2026-01-28T19:28:12.274Z",
    "dateUpdated": "2026-02-11T15:44:32.463Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}