5 Common Vulnerabilities in Smart Contract

{"success":true,"head":"<title>5 Common Vulnerabilities in Smart Contract - CyStack Blog</title>\n<meta name=\"robots\" content=\"noindex, nofollow\"/>\n<meta property=\"og:locale\" content=\"en_US\" />\n<meta property=\"og:type\" content=\"article\" />\n<meta property=\"og:title\" content=\"5 Common Vulnerabilities in Smart Contract - CyStack Blog\" />\n<meta property=\"og:description\" content=\"Blockchain smart contracts are very difficult to operate properly. Store of value, transparency, and immutability are three key attributes that [&hellip;]\" />\n<meta property=\"og:url\" content=\"https://blog.cystack.org/blog/2022/06/09/5-common-vulnerabilities-in-smart-contract/\" />\n<meta property=\"og:site_name\" content=\"CyStack Blog\" />\n<meta property=\"article:tag\" content=\"en\" />\n<meta property=\"article:section\" content=\"Blockchain Security\" />\n<meta property=\"og:updated_time\" content=\"2026-06-23T20:04:59+07:00\" />\n<meta property=\"og:image\" content=\"https://s.cystack.net/resource/home/content/09101847/smartcontractvulnerabilities.jpeg\" />\n<meta property=\"og:image:secure_url\" content=\"https://s.cystack.net/resource/home/content/09101847/smartcontractvulnerabilities.jpeg\" />\n<meta property=\"og:image:width\" content=\"1280\" />\n<meta property=\"og:image:height\" content=\"720\" />\n<meta property=\"og:image:alt\" content=\"Vulinerabilities in Smart Contract\" />\n<meta property=\"og:image:type\" content=\"image/jpeg\" />\n<meta property=\"article:published_time\" content=\"2022-06-09T10:19:33+07:00\" />\n<meta property=\"article:modified_time\" content=\"2026-06-23T20:04:59+07:00\" />\n<meta name=\"twitter:card\" content=\"summary_large_image\" />\n<meta name=\"twitter:title\" content=\"5 Common Vulnerabilities in Smart Contract - CyStack Blog\" />\n<meta name=\"twitter:description\" content=\"Blockchain smart contracts are very difficult to operate properly. Store of value, transparency, and immutability are three key attributes that [&hellip;]\" />\n<meta name=\"twitter:image\" content=\"https://s.cystack.net/resource/home/content/09101847/smartcontractvulnerabilities.jpeg\" />\n<meta name=\"twitter:label1\" content=\"Written by\" />\n<meta name=\"twitter:data1\" content=\"nhivh\" />\n<meta name=\"twitter:label2\" content=\"Time to read\" />\n<meta name=\"twitter:data2\" content=\"5 minutes\" />\n<script type=\"application/ld+json\" class=\"rank-math-schema\">{\"@context\":\"https://schema.org\",\"@graph\":[{\"@type\":\"Organization\",\"@id\":\"https://blog.cystack.org/#organization\",\"name\":\"CyStack\",\"url\":\"https://blog.cystack.org\"},{\"@type\":\"WebSite\",\"@id\":\"https://blog.cystack.org/#website\",\"url\":\"https://blog.cystack.org\",\"name\":\"CyStack\",\"publisher\":{\"@id\":\"https://blog.cystack.org/#organization\"},\"inLanguage\":\"en-US\"},{\"@type\":\"ImageObject\",\"@id\":\"https://s.cystack.net/resource/home/content/03133810/Thumbnail-CyStack.png\",\"url\":\"https://s.cystack.net/resource/home/content/03133810/Thumbnail-CyStack.png\",\"width\":\"1920\",\"height\":\"1081\",\"inLanguage\":\"en-US\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https://blog.cystack.org/blog/2022/06/09/5-common-vulnerabilities-in-smart-contract/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":\"1\",\"item\":{\"@id\":\"https://blog.cystack.org\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"position\":\"2\",\"item\":{\"@id\":\"https://blog.cystack.org/blog/2022/06/09/5-common-vulnerabilities-in-smart-contract/\",\"name\":\"5 Common Vulnerabilities in Smart Contract\"}}]},{\"@type\":\"WebPage\",\"@id\":\"https://blog.cystack.org/blog/2022/06/09/5-common-vulnerabilities-in-smart-contract/#webpage\",\"url\":\"https://blog.cystack.org/blog/2022/06/09/5-common-vulnerabilities-in-smart-contract/\",\"name\":\"5 Common Vulnerabilities in Smart Contract - CyStack Blog\",\"datePublished\":\"2022-06-09T10:19:33+07:00\",\"dateModified\":\"2026-06-23T20:04:59+07:00\",\"isPartOf\":{\"@id\":\"https://blog.cystack.org/#website\"},\"primaryImageOfPage\":{\"@id\":\"https://s.cystack.net/resource/home/content/03133810/Thumbnail-CyStack.png\"},\"inLanguage\":\"en-US\",\"breadcrumb\":{\"@id\":\"https://blog.cystack.org/blog/2022/06/09/5-common-vulnerabilities-in-smart-contract/#breadcrumb\"}},{\"@type\":\"Person\",\"@id\":\"https://blog.cystack.org/author/nhivh/\",\"name\":\"nhivh\",\"url\":\"https://blog.cystack.org/author/nhivh/\",\"image\":{\"@type\":\"ImageObject\",\"@id\":\"https://secure.gravatar.com/avatar/13102c92cd5df1a8196328a11929b6ae8479493c79e3cc04082c03e345c90a13?s=96&amp;d=mm&amp;r=g\",\"url\":\"https://secure.gravatar.com/avatar/13102c92cd5df1a8196328a11929b6ae8479493c79e3cc04082c03e345c90a13?s=96&amp;d=mm&amp;r=g\",\"caption\":\"nhivh\",\"inLanguage\":\"en-US\"},\"worksFor\":{\"@id\":\"https://blog.cystack.org/#organization\"}},{\"@type\":\"BlogPosting\",\"headline\":\"5 Common Vulnerabilities in Smart Contract - CyStack Blog\",\"keywords\":\"Vulinerabilities in Smart Contract\",\"datePublished\":\"2022-06-09T10:19:33+07:00\",\"dateModified\":\"2026-06-23T20:04:59+07:00\",\"author\":{\"@id\":\"https://blog.cystack.org/author/nhivh/\",\"name\":\"nhivh\"},\"publisher\":{\"@id\":\"https://blog.cystack.org/#organization\"},\"description\":\"Blockchain smart contracts are very difficult to operate properly. Store of value, transparency, and immutability are three key attributes that are essential for smart contracts to work effectively. However, these attributes also make many smart contracts a security risk and are the \\\"prey\\\" targeted by many cybercriminals. Even if targeted attacks are not carried out, there are many cases where financial resources are detained and companies lose money due to errors and security holes in smart contracts.\",\"name\":\"5 Common Vulnerabilities in Smart Contract - CyStack Blog\",\"@id\":\"https://blog.cystack.org/blog/2022/06/09/5-common-vulnerabilities-in-smart-contract/#richSnippet\",\"isPartOf\":{\"@id\":\"https://blog.cystack.org/blog/2022/06/09/5-common-vulnerabilities-in-smart-contract/#webpage\"},\"image\":{\"@id\":\"https://s.cystack.net/resource/home/content/03133810/Thumbnail-CyStack.png\"},\"inLanguage\":\"en-US\",\"mainEntityOfPage\":{\"@id\":\"https://blog.cystack.org/blog/2022/06/09/5-common-vulnerabilities-in-smart-contract/#webpage\"}}]}</script>\n"}