{"id":64147,"date":"2025-08-18T15:48:28","date_gmt":"2025-08-18T15:48:28","guid":{"rendered":""},"modified":"2025-09-04T23:55:52","modified_gmt":"2025-09-05T05:55:52","slug":"cve-2025-55010-arbitrary-php-object-instantiation-in-kanboard-prior-to-version-1-2-47","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-55010-arbitrary-php-object-instantiation-in-kanboard-prior-to-version-1-2-47\/","title":{"rendered":"<strong>CVE-2025-55010: Arbitrary PHP Object Instantiation in Kanboard Prior to Version 1.2.47<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>A serious vulnerability has been identified in Kanboard, the project management software that is popular amongst many organizations who follow the Kanban methodology. The vulnerability, identified as CVE-2025-55010, allows admin users to instantiate arbitrary PHP objects, leading to potential system compromise or data leakage. This <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-54419-critical-vulnerability-in-node-saml-library\/\"  data-wpil-monitor-id=\"71740\">vulnerability is especially critical<\/a> because of the high severity score assigned to it, as well as the potential damage it can cause if exploited.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-55010<br \/>\nSeverity: Critical (CVSS: 9.1)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: High (Admin rights)<br \/>\nUser Interaction: Required<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-50160-heap-based-buffer-overflow-in-windows-rras-posing-system-compromise-risk\/\"  data-wpil-monitor-id=\"78623\">System Compromise<\/a>, Data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-2529912571\" class=\"ameeb-content-2 ameeb-entity-placement\"><div style=\"border-left: 4px solid #555; padding-left: 20px; margin: 48px 0; font-family: Roboto, sans-serif; color: #ffffff; line-height: 1.6; max-width: 700px;\">\r\n  <h2 style=\"margin-top: 0; font-size: 20px; font-weight: 600; display: flex; align-items: center;\">\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"display: inline-flex; align-items: center; margin-right: 8px;\">\r\n      <img decoding=\"async\" src=\"https:\/\/www.ameeba.com\/blog\/wp-content\/uploads\/2025\/10\/Best-App-icon-Ameeba.png\" alt=\"Ameeba Chat Icon\" style=\"width: 40px; height: 40px;\" \/>\r\n    <\/a>\r\n    A new way to communicate\r\n  <\/h2>\r\n\r\n  <p style=\"margin-bottom: 12px;\">\r\n    Ameeba Chat is built on encrypted identity, not personal profiles.\r\n  <\/p>\r\n\r\n  <p style=\"margin-bottom: 16px;\">\r\n    Message, call, share files, and coordinate with identities kept separate.\r\n  <\/p>\r\n\r\n  <ul style=\"list-style: none; padding-left: 0; margin-bottom: 20px;\">\r\n    <li>\u2022 Encrypted identity<\/li>\r\n    <li>\u2022 Ameeba Chat authenticates access<\/li>\r\n    <li>\u2022 Aliases and categories<\/li>\r\n    <li>\u2022 End-to-end encrypted chat, calls, and files<\/li>\r\n    <li>\u2022 Secure notes for sensitive information<\/li>\r\n  <\/ul>\r\n\r\n  <p style=\"font-style: italic; font-weight: 600; margin-bottom: 24px;\">\r\n    Private communication, rethought.\r\n  <\/p>\r\n\r\n  <div style=\"display: flex; flex-wrap: wrap; gap: 12px;\">\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\/download\" style=\"background-color: #ffffff; color: #000000; padding: 10px 20px; text-decoration: none; border-radius: 6px; font-weight: 500;\">Download Ameeba Chat<\/a>\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"border: 1px solid #ffffff; color: #ffffff; padding: 10px 20px; text-decoration: none; border-radius: 6px; font-weight: 500;\">Learn More<\/a>\r\n  <\/div>\r\n<\/div>\r\n<\/div>\n<p>Product | Affected Versions<\/p>\n<p>Kanboard | Prior to 1.2.47<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>In the versions prior to 1.2.47, Kanboard had an unsafe <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-53078-critical-deserialization-vulnerability-in-samsung-dms\/\"  data-wpil-monitor-id=\"71884\">deserialization vulnerability<\/a> in the ProjectEventActvityFormatter. Admin users had the ability to instantiate arbitrary <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7384-php-object-injection-vulnerability-in-wordpress-plugin-leads-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"79017\">PHP objects<\/a> by modifying the event[&#8220;data&#8221;] field in the project_activities table. A malicious actor could update this field to use a PHP gadget to write a web shell into the \/plugins folder, which consequently gives <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-50754-stored-cross-site-scripting-xss-vulnerability-leading-to-remote-code-execution-in-unisite-cms-5-0\/\"  data-wpil-monitor-id=\"74711\">remote code execution<\/a> on the host system.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-1404388544\" class=\"ameeb-content ameeb-entity-placement\"><div class=\"poptin-embedded\" data-id=\"f6b387694f681\"><\/div>\r\n\r\n\r\n\r\n\r\n\r\n<\/div>\n<p>A rough example of exploiting this vulnerability might look like this:<\/p>\n<pre><code class=\"\" data-line=\"\">UPDATE project_activities SET event[&#039;data&#039;] = &#039;O:8:&quot;stdClass&quot;:1:{s:4:&quot;code&quot;;s:48:&quot;system($_GET[&#039;cmd&#039;]);&quot;;}&#039; WHERE id = [target_id]<\/code><\/pre>\n<p>This query modifies the event[&#8220;data&#8221;] field to include a PHP gadget, which is a piece of <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-36014-ibm-integration-bus-code-injection-vulnerability\/\"  data-wpil-monitor-id=\"72276\">code that can be used to inject<\/a> a web shell into the \/plugins folder. Once the web shell is there, it can be used to execute <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-30327-integer-overflow-vulnerability-in-incopy-leading-to-potential-arbitrary-code-execution\/\"  data-wpil-monitor-id=\"73675\">arbitrary code<\/a> on the host system.<\/p>\n<p><strong>Mitigation<\/strong><\/p>\n<p>The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-43588-out-of-bounds-write-vulnerability-in-substance3d-sampler-versions-5-0-and-earlier\/\"  data-wpil-monitor-id=\"73498\">vulnerability has been patched in version<\/a> 1.2.47 of Kanboard. Therefore, users are strongly advised to update to this version as soon as possible. If for any reason an immediate update is not possible, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can be used as a temporary mitigation measure.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview A serious vulnerability has been identified in Kanboard, the project management software that is popular amongst many organizations who follow the Kanban methodology. The vulnerability, identified as CVE-2025-55010, allows admin users to instantiate arbitrary PHP objects, leading to potential system compromise or data leakage. This vulnerability is especially critical because of the high severity [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"footnotes":""},"categories":[1],"tags":[],"vendor":[],"product":[],"attack_vector":[80],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-64147","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-rce"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/64147","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/comments?post=64147"}],"version-history":[{"count":8,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/64147\/revisions"}],"predecessor-version":[{"id":71420,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/64147\/revisions\/71420"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=64147"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=64147"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=64147"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=64147"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=64147"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=64147"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=64147"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=64147"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=64147"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}