{"id":9013,"date":"2016-05-27T14:17:37","date_gmt":"2016-05-27T20:17:37","guid":{"rendered":"https:\/\/www.siteground.com\/blog\/?p=9013"},"modified":"2025-09-18T14:49:05","modified_gmt":"2025-09-18T14:49:05","slug":"jetpack-vulnerability","status":"publish","type":"post","link":"https:\/\/www.siteground.com\/blog\/jetpack-vulnerability\/","title":{"rendered":"Jetpack Critical Security Vulnerability"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-9019\" src=\"https:\/\/newblog.siteground.com\/en\/wp-content\/uploads\/sites\/2\/2016\/05\/jetpack.jpg\" alt=\"jetpack\" width=\"660\" height=\"245\"><\/p>\n<p>Today a <a href=\"https:\/\/jetpack.com\/2016\/05\/27\/jetpack-4-0-3-critical-security-update\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">critical vulnerability<\/a> was found in one of the most popular and widely used WordPress plugins &#8211; Jetpack. Fortunately, according to the plugin authors there is no evidence that this issue&nbsp;has been used to hack real sites. However, an update of the plugin was released &#8211; Jetpack 4.0.3.<\/p>\n<p>As usual, our security team was pro-active and updated our WAF (web application firewall), adding rules to prevent the hack from being used. This means that even&nbsp;if your plugin is not updated&nbsp;to the latest version, your site will still be protected. However, we urge all Jetpack users to update the plugin to its latest version in which the vulnerability is patched.<\/p>\n<p>[subscribe_cta]<\/p>\n","protected":false},"excerpt":{"rendered":"Today a critical vulnerability was found in one of the most popular and widely used WordPress plugins - Jetpack. Fortunately, according to the plugin authors there is no evidence that this issue&nbsp;has been used to hack real sites. However, an update of the plugin was released - Jetpack 4.0.3. As usual, our security team was&hellip;","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2098,12,15],"tags":[],"class_list":["post-9013","post","type-post","status-publish","format-standard","hentry","category-hosting-insights","category-security","category-wordpress"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.2 (Yoast SEO v24.2) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Jetpack Critical Security Vulnerability : SiteGround Blog<\/title>\n<meta name=\"description\" content=\"Today a critical vulnerability was found in one of the most popular and widely used WordPress plugins - Jetpack. 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