{
  "schemaVersion": "1.0",
  "publisher": "脆弱性ナビ",
  "origin": "https://zeijaku.ittrip.xyz",
  "terms": [
    {
      "name": "CVE Program",
      "url": "https://www.cve.org/legal/termsofuse",
      "notice": "CVE content is used subject to the CVE Program Terms of Use. CVE is a trademark of The MITRE Corporation.",
      "licenseText": "CVE content: Copyright The MITRE Corporation. CVE is a trademark of The MITRE Corporation.\nCVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.\nDisclaimers: ALL DOCUMENTS AND THE INFORMATION CONTAINED THEREIN PROVIDED BY MITRE ARE PROVIDED ON AN \"AS IS\" BASIS AND THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS OR IS SPONSORED BY (IF ANY), THE MITRE CORPORATION, ITS BOARD OF TRUSTEES, OFFICERS, AGENTS, AND EMPLOYEES, DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION THEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE."
    },
    {
      "name": "NIST NVD",
      "url": "https://nvd.nist.gov/general/faq",
      "notice": "This product uses data from the NVD API but is not endorsed or certified by the NVD."
    },
    {
      "name": "JVN",
      "url": "https://jvn.jp/contact/index.html",
      "notice": "出典：JVN（JPCERT/CC・IPA）。原文は各レコードの参照先を確認してください。"
    },
    {
      "name": "CISA KEV",
      "url": "https://github.com/cisagov/kev-data",
      "notice": "Known Exploited Vulnerabilities catalog, CISA. CC0."
    }
  ],
  "record": {
    "id": "CVE-2026-109933",
    "aliases": [],
    "title": "Otter Blocks：ブラウザー上での不正な処理",
    "summary": "Otter Blocks 3.2.8未満のWordPressプラグインは、ブロックのスタイル属性の値をインラインスタイルシートに書き込む際に、ユーザー提供の値を適切にサニタイズ・エスケープしません。その結果、貢献者レベル以上の権限を持つユーザーが任意のウェブスクリプトを注入でき、閲覧者（管理者を含む）が該当投稿を表示したときにスクリプトが実行されます。",
    "risk": "注入されたスクリプトが閲覧者のブラウザ上で実行される可能性があります。",
    "product": "Otter Blocks",
    "category": "wordpress",
    "component": "plugin",
    "severity": "unknown",
    "cvss": null,
    "cvssVersion": null,
    "cvssSource": "WPScan",
    "cvssVector": null,
    "affected": [
      {
        "product": "Otter Blocks",
        "range": "< 3.2.8"
      }
    ],
    "fixed": [],
    "steps": [
      "利用中の製品名・版と上の対象条件を管理担当者に伝え、この脆弱性に対応した修正の有無、適用する版・手順・実施日を確認してください。"
    ],
    "references": [
      {
        "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/109xxx/CVE-2026-109933.json",
        "label": "CVE：WPScan"
      },
      {
        "url": "https://www.cve.org/CVERecord?id=CVE-2026-109933",
        "label": "CVE公式レコード"
      },
      {
        "url": "https://wpscan.com/vulnerability/a2a19770-9ee2-4164-9ea6-a882cf0085e9/",
        "label": "contact@wpscan.com"
      },
      {
        "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-109933",
        "label": "NVDの原文"
      },
      {
        "url": "https://wordpress.org/documentation/article/plugins-screen/",
        "label": "WordPress公式：プラグイン一覧"
      },
      {
        "url": "https://wordpress.org/documentation/article/site-health-screen/",
        "label": "WordPress公式：サイトヘルスの情報"
      },
      {
        "url": "https://wordpress.org/documentation/article/updating-wordpress/",
        "label": "WordPress公式：本体の更新"
      },
      {
        "url": "https://wordpress.org/documentation/article/dashboard-updates-screen/",
        "label": "WordPress公式：更新画面"
      },
      {
        "url": "https://wordpress.org/documentation/article/manage-plugins/",
        "label": "WordPress公式：プラグインの確認と更新"
      }
    ],
    "publishedAt": "2026-10-23T06:00:17.572Z",
    "modifiedAt": "2026-10-23T06:17:05.170Z",
    "fetchedAt": "2026-10-23T06:22:01.185Z",
    "exploitStatus": "unknown",
    "sources": [
      "CVE",
      "NVD"
    ],
    "originalText": "The Otter Blocks  WordPress plugin before 3.2.8 does not properly sanitize and escape user-supplied block styling values before writing them into an inline stylesheet, allowing users with contributor-level access and above to inject arbitrary web scripts that execute when any visitor, including administrators, views the affected post.",
    "sourceTitle": "Otter Blocks < 3.2.8 - Contributor+ Stored XSS via Block Style Attributes",
    "summaryMethod": "公式の公開情報を根拠に自動作成した日本語解説です。引用との整合性を自動検査しています。人による個別確認や利用環境の診断ではありません。",
    "state": "published",
    "affectedDetails": [
      {
        "vendor": "Unknown",
        "product": "Otter Blocks",
        "versions": [
          {
            "status": "affected",
            "versionType": "semver",
            "version": "0",
            "lessThan": "3.2.8"
          }
        ],
        "defaultStatus": "unaffected"
      }
    ],
    "officialEvidence": {
      "schemaVersion": "1.0",
      "id": "CVE-2026-109933",
      "sourceType": "CVE",
      "sourceUrl": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/109xxx/CVE-2026-109933.json",
      "fetchedAt": "2026-10-23T06:22:01.185Z",
      "publishedAt": "2026-10-23T06:00:17.572Z",
      "modifiedAt": "2026-10-23T06:00:17.572Z",
      "state": "published",
      "provider": "WPScan",
      "title": "Otter Blocks < 3.2.8 - Contributor+ Stored XSS via Block Style Attributes",
      "descriptions": [
        {
          "lang": "en",
          "value": "The Otter Blocks  WordPress plugin before 3.2.8 does not properly sanitize and escape user-supplied block styling values before writing them into an inline stylesheet, allowing users with contributor-level access and above to inject arbitrary web scripts that execute when any visitor, including administrators, views the affected post.",
          "sourcePath": "/containers/cna/descriptions/0/value"
        }
      ],
      "affected": [
        {
          "vendor": "Unknown",
          "product": "Otter Blocks",
          "sourcePath": "/containers/cna/affected/0",
          "defaultStatus": "unaffected",
          "platforms": [],
          "modules": [],
          "programFiles": [],
          "cpes": [],
          "programRoutines": [],
          "versions": [
            {
              "sourcePath": "/containers/cna/affected/0/versions/0",
              "version": "0",
              "lessThan": "3.2.8",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ],
      "solutions": [],
      "workarounds": [],
      "exploits": [],
      "rejectedReasons": [],
      "problemTypes": [
        {
          "cweId": "",
          "lang": "en",
          "description": "CWE-79 Cross-Site Scripting (XSS)",
          "sourcePath": "/containers/cna/problemTypes/0/descriptions/0"
        }
      ],
      "metrics": [],
      "references": [
        {
          "url": "https://wpscan.com/vulnerability/a2a19770-9ee2-4164-9ea6-a882cf0085e9/",
          "label": "WPScan",
          "tags": [
            "exploit",
            "vdb-entry",
            "technical-description"
          ],
          "provider": "WPScan",
          "sourcePath": "/containers/cna/references/0"
        }
      ],
      "snippets": [
        {
          "evidenceId": "official:/containers/cna/affected/0",
          "sourceUrl": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/109xxx/CVE-2026-109933.json",
          "sourcePath": "/containers/cna/affected/0",
          "text": "{\"vendor\":\"Unknown\",\"product\":\"Otter Blocks\",\"versions\":[{\"status\":\"affected\",\"versionType\":\"semver\",\"version\":\"0\",\"lessThan\":\"3.2.8\"}],\"defaultStatus\":\"unaffected\"}",
          "truncated": false,
          "representation": "source_json"
        },
        {
          "evidenceId": "official:/containers/cna/descriptions/0/value",
          "sourceUrl": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/109xxx/CVE-2026-109933.json",
          "sourcePath": "/containers/cna/descriptions/0/value",
          "text": "The Otter Blocks  WordPress plugin before 3.2.8 does not properly sanitize and escape user-supplied block styling values before writing them into an inline stylesheet, allowing users with contributor-level access and above to inject arbitrary web scripts that execute when any visitor, including administrators, views the affected post.",
          "truncated": false,
          "representation": "source_excerpt"
        },
        {
          "evidenceId": "official:/containers/cna/problemTypes/0/descriptions/0",
          "sourceUrl": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/109xxx/CVE-2026-109933.json",
          "sourcePath": "/containers/cna/problemTypes/0/descriptions/0",
          "text": "{\"description\":\"CWE-79 Cross-Site Scripting (XSS)\",\"lang\":\"en\",\"type\":\"CWE\"}",
          "truncated": false,
          "representation": "source_json"
        }
      ],
      "limits": {
        "completeness": "official_record",
        "truncatedFields": [],
        "note": "CVE公式レコードに記載された情報です。参照先の個別ページ本文は含みません。unaffected（影響なし）の版を修正版とは推測しません。"
      }
    },
    "sourceSnapshots": [
      {
        "source": "CVE",
        "modifiedAt": "2026-10-23T06:00:17.572Z",
        "fetchedAt": "2026-10-23T06:22:01.185Z",
        "state": "published"
      },
      {
        "source": "NVD",
        "modifiedAt": "2026-10-23T06:17:05.170Z",
        "fetchedAt": "2026-10-23T06:17:49.165Z",
        "state": "published"
      }
    ],
    "sourceSummary": "Otter Blocksにブラウザー上での不正な処理に関する脆弱性情報があります。影響を受ける条件を確認してください。",
    "sourceRisk": "利用者のブラウザー上で不正なスクリプトが動く可能性があります。成立条件は原文を確認してください。",
    "guidance": {
      "schemaVersion": "1.0",
      "method": "automatic",
      "reviewedAt": null,
      "reviewState": "current",
      "generatedAt": "2026-10-23T06:22:01.185Z",
      "generatorVersion": "2026-10-23.3",
      "sourceFingerprint": "73331c9e646eb34814e3ee8b0795e3d37587f6f58badc1617b01d4d03fd25726",
      "sourceModifiedAt": "2026-10-23T06:17:05.170Z",
      "model": "@cf/openai/gpt-oss-120b",
      "verificationMethod": "exact_source_excerpt_and_independent_semantic_check",
      "summary": "Otter Blocks 3.2.8未満のWordPressプラグインは、ブロックのスタイル属性の値をインラインスタイルシートに書き込む際に、ユーザー提供の値を適切にサニタイズ・エスケープしません。その結果、貢献者レベル以上の権限を持つユーザーが任意のウェブスクリプトを注入でき、閲覧者（管理者を含む）が該当投稿を表示したときにスクリプトが実行されます。",
      "risk": "注入されたスクリプトが閲覧者のブラウザ上で実行される可能性があります。",
      "summaryEvidenceIds": [
        "E1",
        "E2"
      ],
      "riskEvidenceIds": [
        "E1"
      ],
      "applicability": [
        {
          "text": "貢献者レベル以上の権限を持つユーザーがブロックのスタイル属性を設定できる環境、かつ Otter Blocks プラグインがバージョン 3.2.8 未満である WordPress サイトが対象です。",
          "kind": "fact",
          "sourceUrls": [
            "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/109xxx/CVE-2026-109933.json"
          ],
          "evidenceIds": [
            "E1",
            "E2"
          ]
        },
        {
          "text": "公式の対象表：Otter Blocks。影響ありとして記載：3.2.8未満の版。",
          "kind": "fact",
          "sourceUrls": [
            "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/109xxx/CVE-2026-109933.json"
          ],
          "evidenceIds": [
            "E3"
          ]
        }
      ],
      "versionChecks": [
        {
          "text": "管理担当者に、利用中の製品名・開発元・版やビルド番号を確認してもらいます。上に記載した対象の機能・設定・利用者の権限も、実際の環境と照合してください。",
          "kind": "procedure",
          "sourceUrls": [
            "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/109xxx/CVE-2026-109933.json"
          ],
          "evidenceIds": [
            "E3"
          ]
        },
        {
          "text": "WordPressの管理画面にログインし、「プラグイン」→「インストール済みプラグイン」を開きます。「Otter Blocks」と同じ製品名・開発元の項目を探し、表示されているバージョンを控えてください。停止中のプラグインも一覧に含めて確認します。",
          "kind": "procedure",
          "sourceUrls": [
            "https://wordpress.org/documentation/article/plugins-screen/"
          ]
        },
        {
          "text": "管理画面に入れない、または同じ名前の製品を判別できない場合は、下の問い合わせ文をサイトの制作会社・管理担当者に送ってください。名前が見つからないという理由だけで、安全とは判定しないでください。",
          "kind": "procedure",
          "sourceUrls": [
            "https://wordpress.org/documentation/article/site-health-screen/",
            "https://wordpress.org/documentation/article/plugins-screen/"
          ]
        }
      ],
      "actions": [
        {
          "text": "利用中の製品名・版と上の対象条件を管理担当者に伝え、この脆弱性に対応した修正の有無、適用する版・手順・実施日を確認してください。",
          "kind": "procedure",
          "sourceUrls": [
            "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/109xxx/CVE-2026-109933.json"
          ],
          "evidenceIds": [
            "E3"
          ]
        }
      ],
      "temporaryMitigations": [
        {
          "text": "更新できない場合は、対象機能の停止や公開範囲の制限が使えるかを管理担当者と検討し、実施内容と更新予定日を記録してください。プラグインの「無効化」だけでこの脆弱性を防げるかは個別に確認が必要です。",
          "kind": "procedure",
          "sourceUrls": [
            "https://wordpress.org/documentation/article/plugins-screen/",
            "https://www.cve.org/CVERecord?id=CVE-2026-109933",
            "https://wpscan.com/vulnerability/a2a19770-9ee2-4164-9ea6-a882cf0085e9/",
            "https://nvd.nist.gov/vuln/detail/CVE-2026-109933"
          ]
        }
      ],
      "verification": [
        {
          "text": "対応を依頼した場合は、実施した版・設定と完了日時、この脆弱性への修正が含まれると判断した根拠を担当者から受け取ってください。更新後は普段使う主要な操作も確認します。",
          "kind": "procedure",
          "sourceUrls": [
            "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/109xxx/CVE-2026-109933.json"
          ],
          "evidenceIds": [
            "E3"
          ]
        },
        {
          "text": "更新後に同じ管理画面を開き直してバージョンを記録します。修正対象の系列・版と一致するかを照合し、サイト表示、ログイン、フォームや購入など普段使う主要な操作も確認してください。更新ボタンを押しただけでは完了としないでください。",
          "kind": "procedure",
          "sourceUrls": [
            "https://wordpress.org/documentation/article/updating-wordpress/",
            "https://wordpress.org/documentation/article/dashboard-updates-screen/"
          ]
        }
      ],
      "unknowns": [
        "この解説は、利用中の機器・サイトの設定や修正の適用状況を検査した結果ではありません。製品名・版と上に示した条件を、実際の環境と照合してください。",
        "今回取得した資料から、修正済みと明記された版の番号を取り出せていません。修正が存在しないという意味ではありません。対象の製品・現在の版を添え、提供元に修正版の番号と適用方法を確認してください。"
      ],
      "sources": [
        {
          "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/109xxx/CVE-2026-109933.json",
          "label": "CVE：WPScan"
        },
        {
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-109933",
          "label": "CVE公式レコード"
        },
        {
          "url": "https://wpscan.com/vulnerability/a2a19770-9ee2-4164-9ea6-a882cf0085e9/",
          "label": "contact@wpscan.com"
        },
        {
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-109933",
          "label": "NVDの原文"
        },
        {
          "url": "https://wordpress.org/documentation/article/plugins-screen/",
          "label": "WordPress公式：プラグイン一覧"
        },
        {
          "url": "https://wordpress.org/documentation/article/site-health-screen/",
          "label": "WordPress公式：サイトヘルスの情報"
        },
        {
          "url": "https://wordpress.org/documentation/article/updating-wordpress/",
          "label": "WordPress公式：本体の更新"
        },
        {
          "url": "https://wordpress.org/documentation/article/dashboard-updates-screen/",
          "label": "WordPress公式：更新画面"
        },
        {
          "url": "https://wordpress.org/documentation/article/manage-plugins/",
          "label": "WordPress公式：プラグインの確認と更新"
        }
      ],
      "evidence": [
        {
          "id": "E1",
          "sourceUrl": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/109xxx/CVE-2026-109933.json",
          "sourceField": "/containers/cna/descriptions/0/value",
          "excerpt": "The Otter Blocks  WordPress plugin before 3.2.8 does not properly sanitize and escape user-supplied block styling values before writing them into an inline stylesheet, allowing users with contributor-level access and above to inject arbitrary web scripts that execute when any visitor, including administrators, views the affected post.",
          "language": "en",
          "representation": "source_excerpt"
        },
        {
          "id": "E2",
          "sourceUrl": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/109xxx/CVE-2026-109933.json",
          "sourceField": "/containers/cna/title",
          "excerpt": "Otter Blocks < 3.2.8 - Contributor+ Stored XSS via Block Style Attributes",
          "language": null
        },
        {
          "id": "E3",
          "sourceUrl": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/109xxx/CVE-2026-109933.json",
          "sourceField": "/containers/cna/affected/0",
          "excerpt": "{\"vendor\":\"Unknown\",\"product\":\"Otter Blocks\",\"versions\":[{\"status\":\"affected\",\"versionType\":\"semver\",\"version\":\"0\",\"lessThan\":\"3.2.8\"}],\"defaultStatus\":\"unaffected\"}",
          "language": null,
          "representation": "source_json"
        }
      ],
      "supportRequest": "件名：CVE-2026-109933（Otter Blocks）の影響と対応確認\n\n利用中の製品・サービス：[記入してください]\n現在のバージョン・設定：[不明なら「不明」と記入]\n\n次の公式情報にある条件が、私たちの環境に当てはまるか確認をお願いします。\n・貢献者レベル以上の権限を持つユーザーがブロックのスタイル属性を設定できる環境、かつ Otter Blocks プラグインがバージョン 3.2.8 未満である WordPress サイトが対象です。\n・公式の対象表：Otter Blocks。影響ありとして記載：3.2.8未満の版。\n\n対象の場合、適用する修正・回避策、実施予定、停止や再起動の必要性、完了後の確認結果を教えてください。\n確認している情報：https://zeijaku.ittrip.xyz/vulnerabilities/CVE-2026-109933",
      "publicationCheckVersion": "2026-10-23.1",
      "sourceNotices": [],
      "automation": {
        "status": "ready",
        "lastAttempt": "2026-10-23T06:22:01.185Z",
        "lastSuccess": "2026-10-23T06:22:01.185Z",
        "sourceCheckedAt": "2026-10-23T06:22:01.185Z",
        "errorCode": null
      },
      "glossary": []
    }
  }
}