CVE-2026-92746 (GCVE-0-2026-92746)

Vulnerability from cvelistv5 – Published: 2026-09-25 06:39 – Updated: 2026-09-25 06:39
VLAI
Title
Gutenverse <= 4.0.8 - Authenticated (Contributor+) Stored Cross-Site Scripting via Post Comment Block 'suffixMain' Attribute
Summary
The Gutenverse – WordPress Blocks, Page Builder & Site Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Post Comment Block 'suffixMain' Attribute in all versions up to, and including, 4.0.8 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. WordPress core wp_kses_post sanitization does not mitigate this vulnerability because the payload is stored inside a Gutenberg block delimiter comment rather than as a raw HTML tag, and is only rendered as exploitable HTML at the PHP render stage.
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')
Assigner
References
Impacted products
Vendor Product Version CPE status
jegstudio Gutenverse – WordPress Blocks, Page Builder & Site Editor Affected: 0 , ≤ 4.0.8 (semver)
guessed Create a notification for this product.
Credits
Dmitrii Ignatyev
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Gutenverse \u2013 WordPress Blocks, Page Builder \u0026 Site Editor",
          "vendor": "jegstudio",
          "versions": [
            {
              "lessThanOrEqual": "4.0.8",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Dmitrii Ignatyev"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Gutenverse \u2013 WordPress Blocks, Page Builder \u0026 Site Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Post Comment Block \u0027suffixMain\u0027 Attribute in all versions up to, and including, 4.0.8 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. WordPress core wp_kses_post sanitization does not mitigate this vulnerability because the payload is stored inside a Gutenberg block delimiter comment rather than as a raw HTML tag, and is only rendered as exploitable HTML at the PHP render stage."
        }
      ],
      "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": "2026-09-25T06:39:57.038Z",
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence"
      },
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/e35f9e09-c386-4e37-9d81-8dd2863457ac?source=cve"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/gutenverse/tags/4.0.8/includes/block/class-post-comment.php#L80"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/gutenverse/tags/4.0.8/includes/block/class-post-comment.php#L51"
        },
        {
          "url": "https://plugins.trac.wordpress.org/changeset/3710420/gutenverse/trunk/includes/block/class-post-comment.php"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-09-16T18:59:31.000Z",
          "value": "Vendor Notified"
        },
        {
          "lang": "en",
          "time": "2026-09-24T18:22:01.000Z",
          "value": "Disclosed"
        }
      ],
      "title": "Gutenverse \u003c= 4.0.8 - Authenticated (Contributor+) Stored Cross-Site Scripting via Post Comment Block \u0027suffixMain\u0027 Attribute"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
    "assignerShortName": "Wordfence",
    "cveId": "CVE-2026-92746",
    "datePublished": "2026-09-25T06:39:57.038Z",
    "dateReserved": "2026-09-16T18:44:26.704Z",
    "dateUpdated": "2026-09-25T06:39:57.038Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}



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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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