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JSでajaxを利用する際のセキュリティ注意点2つ

1. innerHTMLではなくinnerTextを利用すること

  • 自動的にテキストエンコードされXSSが防げる

2. (ajaxに限らず)URLパラメータなど、ユーザの入力値をそのまま画面上に出力しないこと

おまけ

  • JSは宣言なしで変数に代入すると常にグローバル変数になるため注意
a-hikkoshi
当社は、親会社である株式会社エイチームの経営理念をそのままに、引越しの比較サービス開始以降、大切にしてきた「三方よし」の理念を基本として、世の中に求められるサービスの創造を目指します。
https://hikkoshi.a-tm.co.jp/
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