CVE-2026-18062 (GCVE-0-2026-18062)
Vulnerability from cvelistv5
Published
2026-08-01 07:49
Modified
2026-08-03 15:38
Severity ?
6.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Summary
The Kadence Blocks — Page Builder Toolkit for Gutenberg Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Identity Block Inner Image Content in all versions up to, and including, 3.7.8.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This vulnerability is only triggerable when the block's urlTransparent attribute is set to a non-empty value, as this is a required precondition for the vulnerable code path in build_html() to be reached.
References
Impacted products
Vendor Product Version
stellarwp Kadence Blocks — Page Builder Toolkit for Gutenberg Editor Version: 0   ≤ 3.7.8.1
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-18062",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-03T13:44:24.450295Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-03T15:38:36.792Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Kadence Blocks \u2014 Page Builder Toolkit for Gutenberg Editor",
          "vendor": "stellarwp",
          "versions": [
            {
              "lessThanOrEqual": "3.7.8.1",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "theviper17y"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Kadence Blocks \u2014 Page Builder Toolkit for Gutenberg Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Identity Block Inner Image Content in all versions up to, and including, 3.7.8.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This vulnerability is only triggerable when the block\u0027s urlTransparent attribute is set to a non-empty value, as this is a required precondition for the vulnerable code path in build_html() to be reached."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 6.4,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "CWE-79 Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-01T07:49:47.952Z",
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence"
      },
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/620bd934-327e-4509-a5e0-b910654af29b?source=cve"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.8/includes/blocks/class-kadence-blocks-identity-block.php#L117"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.8/includes/blocks/class-kadence-blocks-identity-block.php#L108"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.8/includes/blocks/class-kadence-blocks-identity-block.php#L162"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.2/includes/blocks/class-kadence-blocks-identity-block.php#L117"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.2/includes/blocks/class-kadence-blocks-identity-block.php#L108"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.2/includes/blocks/class-kadence-blocks-identity-block.php#L162"
        },
        {
          "url": "https://plugins.trac.wordpress.org/changeset?reponame=\u0026old=3627652%40kadence-blocks\u0026new=3627652%40kadence-blocks"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-07-28T14:17:05.000Z",
          "value": "Vendor Notified"
        },
        {
          "lang": "en",
          "time": "2026-07-31T19:39:46.000Z",
          "value": "Disclosed"
        }
      ],
      "title": "Kadence Blocks \u003c= 3.7.8.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Identity Block Inner Image Content"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
    "assignerShortName": "Wordfence",
    "cveId": "CVE-2026-18062",
    "datePublished": "2026-08-01T07:49:47.952Z",
    "dateReserved": "2026-07-28T14:01:53.403Z",
    "dateUpdated": "2026-08-03T15:38:36.792Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-18062\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-08-03T13:44:24.450295Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-08-03T13:44:29.895Z\"}}], \"cna\": {\"title\": \"Kadence Blocks \u003c= 3.7.8.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Identity Block Inner Image Content\", \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"theviper17y\"}], \"metrics\": [{\"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 6.4, \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N\"}}], \"affected\": [{\"vendor\": \"stellarwp\", \"product\": \"Kadence Blocks \\u2014 Page Builder Toolkit for Gutenberg Editor\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"3.7.8.1\"}], \"defaultStatus\": \"unaffected\"}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2026-07-28T14:17:05.000Z\", \"value\": \"Vendor Notified\"}, {\"lang\": \"en\", \"time\": \"2026-07-31T19:39:46.000Z\", \"value\": \"Disclosed\"}], \"references\": [{\"url\": \"https://www.wordfence.com/threat-intel/vulnerabilities/id/620bd934-327e-4509-a5e0-b910654af29b?source=cve\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.8/includes/blocks/class-kadence-blocks-identity-block.php#L117\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.8/includes/blocks/class-kadence-blocks-identity-block.php#L108\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.8/includes/blocks/class-kadence-blocks-identity-block.php#L162\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.2/includes/blocks/class-kadence-blocks-identity-block.php#L117\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.2/includes/blocks/class-kadence-blocks-identity-block.php#L108\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.2/includes/blocks/class-kadence-blocks-identity-block.php#L162\"}, {\"url\": \"https://plugins.trac.wordpress.org/changeset?reponame=\u0026old=3627652%40kadence-blocks\u0026new=3627652%40kadence-blocks\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"The Kadence Blocks \\u2014 Page Builder Toolkit for Gutenberg Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Identity Block Inner Image Content in all versions up to, and including, 3.7.8.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This vulnerability is only triggerable when the block\u0027s urlTransparent attribute is set to a non-empty value, as this is a required precondition for the vulnerable code path in build_html() to be reached.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-79\", \"description\": \"CWE-79 Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"b15e7b5b-3da4-40ae-a43c-f7aa60e62599\", \"shortName\": \"Wordfence\", \"dateUpdated\": \"2026-08-01T07:49:47.952Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-18062\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-03T15:38:36.792Z\", \"dateReserved\": \"2026-07-28T14:01:53.403Z\", \"assignerOrgId\": \"b15e7b5b-3da4-40ae-a43c-f7aa60e62599\", \"datePublished\": \"2026-08-01T07:49:47.952Z\", \"assignerShortName\": \"Wordfence\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.