"cross-site scripting" meaning in English

{
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      "args": {
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      "expansion": "cross-site scripting (uncountable)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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          "name": "English entries with incorrect language header",
          "parents": [
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          "source": "w"
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        {
          "kind": "topical",
          "langcode": "en",
          "name": "Computer security",
          "orig": "en:Computer security",
          "parents": [
            "Computing",
            "Technology",
            "All topics",
            "Fundamental"
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          "source": "w"
        }
      ],
      "derived": [
        {
          "word": "persistent cross-site scripting"
        },
        {
          "word": "reflected cross-site scripting"
        },
        {
          "word": "self-XSS"
        }
      ],
      "glosses": [
        "An exploit that involves tricking a victim into executing a malicious script in a target website."
      ],
      "id": "en-cross-site_scripting-en-noun-GzfdK4yh",
      "links": [
        [
          "computer security",
          "computer security"
        ],
        [
          "exploit",
          "exploit"
        ],
        [
          "script",
          "script"
        ]
      ],
      "qualifier": "computer security",
      "raw_glosses": [
        "(computer security) An exploit that involves tricking a victim into executing a malicious script in a target website."
      ],
      "synonyms": [
        {
          "word": "XSS"
        }
      ],
      "tags": [
        "uncountable"
      ]
    }
  ],
  "word": "cross-site scripting"
}

{
  "derived": [
    {
      "word": "persistent cross-site scripting"
    },
    {
      "word": "reflected cross-site scripting"
    },
    {
      "word": "self-XSS"
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-"
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      "expansion": "cross-site scripting (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        "English entries with incorrect language header",
        "English lemmas",
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      ],
      "glosses": [
        "An exploit that involves tricking a victim into executing a malicious script in a target website."
      ],
      "links": [
        [
          "computer security",
          "computer security"
        ],
        [
          "exploit",
          "exploit"
        ],
        [
          "script",
          "script"
        ]
      ],
      "qualifier": "computer security",
      "raw_glosses": [
        "(computer security) An exploit that involves tricking a victim into executing a malicious script in a target website."
      ],
      "tags": [
        "uncountable"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "XSS"
    }
  ],
  "word": "cross-site scripting"
}