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    2 vulnerabilities by yo35

    CVE-2026-13042 (GCVE-0-2026-13042)

    Vulnerability from nvd – Published: 2026-07-16 03:44 – Updated: 2026-07-16 03:44
    VLAI
    Title
    RPB Chessboard <= 8.1.2 - Unauthenticated Stored Cross-Site Scripting via Comment Content
    Summary
    The RPB Chessboard plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Comment Content in all versions up to, and including, 8.1.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. WordPress's save-time kses sanitization does not mitigate this issue because the crafted payload uses only kses-allowed tags and attributes (such as an &lt;a&gt; element with title and href), and the dangerous attribute-breaking HTML is synthesized entirely at render time by the plugin's own comment_text filter.
    Severity
    7.2 (High)
    CVSS:3.1/AV:N/AC:L/PR:N/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
    yo35 RPB Chessboard Affected: 0 , ≤ 8.1.2 (semver)
    		Create a notification for this product.
    Credits
    theviper17y
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "RPB Chessboard",
          "vendor": "yo35",
          "versions": [
            {
              "lessThanOrEqual": "8.1.2",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "theviper17y"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The RPB Chessboard plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Comment Content in all versions up to, and including, 8.1.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. WordPress\u0027s save-time kses sanitization does not mitigate this issue because the crafted payload uses only kses-allowed tags and attributes (such as an \u0026lt;a\u0026gt; element with title and href), and the dangerous attribute-breaking HTML is synthesized entirely at render time by the plugin\u0027s own comment_text filter."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.2,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/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": "2026-07-16T03:44:31.767Z",
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence"
      },
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/848b9c6d-e0db-43ad-ac6d-3674435339dd?source=cve"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/rpb-chessboard/tags/8.1.2/php/abstractcontroller.php#L220"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/rpb-chessboard/tags/8.1.2/php/abstractcontroller.php#L171"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/rpb-chessboard/tags/8.1.2/php/abstractcontroller.php#L190"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/rpb-chessboard/tags/8.1.0/php/abstractcontroller.php#L220"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/rpb-chessboard/tags/8.1.0/php/abstractcontroller.php#L171"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/rpb-chessboard/tags/8.1.0/php/abstractcontroller.php#L190"
        },
        {
          "url": "https://plugins.trac.wordpress.org/changeset?reponame=\u0026old=3604068%40rpb-chessboard\u0026new=3604068%40rpb-chessboard"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-07-15T15:16:25.000Z",
          "value": "Disclosed"
        }
      ],
      "title": "RPB Chessboard \u003c= 8.1.2 - Unauthenticated Stored Cross-Site Scripting via Comment Content"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
    "assignerShortName": "Wordfence",
    "cveId": "CVE-2026-13042",
    "datePublished": "2026-07-16T03:44:31.767Z",
    "dateReserved": "2026-06-23T17:22:04.111Z",
    "dateUpdated": "2026-07-16T03:44:31.767Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

    CVE-2026-13042 (GCVE-0-2026-13042)

    Vulnerability from cvelistv5 – Published: 2026-07-16 03:44 – Updated: 2026-07-16 03:44
    VLAI
    Title
    RPB Chessboard <= 8.1.2 - Unauthenticated Stored Cross-Site Scripting via Comment Content
    Summary
    The RPB Chessboard plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Comment Content in all versions up to, and including, 8.1.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. WordPress's save-time kses sanitization does not mitigate this issue because the crafted payload uses only kses-allowed tags and attributes (such as an &lt;a&gt; element with title and href), and the dangerous attribute-breaking HTML is synthesized entirely at render time by the plugin's own comment_text filter.
    Severity
    7.2 (High)
    CVSS:3.1/AV:N/AC:L/PR:N/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
    yo35 RPB Chessboard Affected: 0 , ≤ 8.1.2 (semver)
    		Create a notification for this product.
    Credits
    theviper17y
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "RPB Chessboard",
          "vendor": "yo35",
          "versions": [
            {
              "lessThanOrEqual": "8.1.2",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "theviper17y"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The RPB Chessboard plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Comment Content in all versions up to, and including, 8.1.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. WordPress\u0027s save-time kses sanitization does not mitigate this issue because the crafted payload uses only kses-allowed tags and attributes (such as an \u0026lt;a\u0026gt; element with title and href), and the dangerous attribute-breaking HTML is synthesized entirely at render time by the plugin\u0027s own comment_text filter."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.2,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/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": "2026-07-16T03:44:31.767Z",
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence"
      },
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/848b9c6d-e0db-43ad-ac6d-3674435339dd?source=cve"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/rpb-chessboard/tags/8.1.2/php/abstractcontroller.php#L220"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/rpb-chessboard/tags/8.1.2/php/abstractcontroller.php#L171"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/rpb-chessboard/tags/8.1.2/php/abstractcontroller.php#L190"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/rpb-chessboard/tags/8.1.0/php/abstractcontroller.php#L220"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/rpb-chessboard/tags/8.1.0/php/abstractcontroller.php#L171"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/rpb-chessboard/tags/8.1.0/php/abstractcontroller.php#L190"
        },
        {
          "url": "https://plugins.trac.wordpress.org/changeset?reponame=\u0026old=3604068%40rpb-chessboard\u0026new=3604068%40rpb-chessboard"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-07-15T15:16:25.000Z",
          "value": "Disclosed"
        }
      ],
      "title": "RPB Chessboard \u003c= 8.1.2 - Unauthenticated Stored Cross-Site Scripting via Comment Content"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
    "assignerShortName": "Wordfence",
    "cveId": "CVE-2026-13042",
    "datePublished": "2026-07-16T03:44:31.767Z",
    "dateReserved": "2026-06-23T17:22:04.111Z",
    "dateUpdated": "2026-07-16T03:44:31.767Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}