{"id":34128,"date":"2025-05-02T10:42:42","date_gmt":"2025-05-02T10:42:42","guid":{"rendered":""},"modified":"2025-08-30T04:38:57","modified_gmt":"2025-08-30T10:38:57","slug":"cve-2025-3638-critical-csrf-vulnerability-in-moodle-s-brickfield-tool","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-3638-critical-csrf-vulnerability-in-moodle-s-brickfield-tool\/","title":{"rendered":"<strong>CVE-2025-3638: Critical CSRF Vulnerability in Moodle\u2019s Brickfield Tool<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>In the ever-evolving digital realm, cybersecurity vulnerabilities can have far-reaching impacts, particularly when they involve widely used e-learning platforms like Moodle. This blog post focuses on a recently discovered critical vulnerability, CVE-2025-3638, affecting Moodle&#8217;s Brickfield tool. This <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-22636-cross-site-scripting-vulnerability-in-vr-frases-leads-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"40193\">vulnerability is a Cross-Site<\/a> Request Forgery (CSRF) risk, a threat that enables attackers to trick victims into executing actions of the attacker&#8217;s choosing.<br \/>\nGiven the severity of this vulnerability, it is imperative for organizations using Moodle to understand its potential <a href=\"https:\/\/www.ameeba.com\/blog\/unpacking-the-cybersecurity-resources-ncua-a-comprehensive-analysis-of-the-event-its-implications-and-mitigation-strategies\/\"  data-wpil-monitor-id=\"39392\">implications and take immediate steps to mitigate<\/a> the risks.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-3638<br \/>\nSeverity: Critical (8.8 CVSS Severity Score)<br \/>\nAttack Vector: Web<br \/>\nPrivileges Required: Low<br \/>\nUser Interaction: Required<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32857-sql-injection-vulnerability-in-telecontrol-server-basic-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"40194\">Potential system<\/a> compromise or data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-2590746216\" 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>Moodle | Versions using Brickfield tool<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-3642-critical-remote-code-execution-vulnerability-in-moodle-lms-equella-repository\/\"  data-wpil-monitor-id=\"41517\">vulnerability exists because the analysis request action in Moodle&#8217;s<\/a> Brickfield tool lacks a necessary token, which would typically be used to prevent CSRF attacks. This missing token creates a loophole for attackers, enabling them to deceive <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-1950-local-user-command-execution-vulnerability-in-ibm-hardware-management-console\/\"  data-wpil-monitor-id=\"40538\">users into executing<\/a> unwanted actions in their sessions.<br \/>\nBy exploiting this vulnerability, an <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-35996-cross-site-scripting-attack-in-kunbus-pictory\/\"  data-wpil-monitor-id=\"42851\">attacker can generate a malicious link or script<\/a> that, when clicked or executed by the victim, performs actions on their behalf without their knowledge or consent. This could <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32849-vulnerability-in-telecontrol-server-basic-leads-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"39393\">potentially lead to system<\/a> compromise or data leakage, depending on the level of access the victim has.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-4151326922\" 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>Here is a conceptual example <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49526-out-of-bounds-write-vulnerability-in-illustrator-leading-to-arbitrary-code-execution\/\"  data-wpil-monitor-id=\"75216\">illustrating how the vulnerability<\/a> might be exploited:<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/brickfield\/analysis_request HTTP\/1.1\nHost: victim.example.com\nContent-Type: application\/x-www-form-urlencoded\nuser_session_id=12345&amp;malicious_action=drop_all_tables<\/code><\/pre>\n<p>In this example, an attacker could craft a malicious <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4829-critical-buffer-overflow-vulnerability-in-totolink-http-post-request-handler\/\"  data-wpil-monitor-id=\"52225\">POST request<\/a> to the analysis_request endpoint of the Brickfield tool. The request contains a user_session_id and a malicious_action &#8211; in this case, &#8216;drop_all_tables&#8217;. If the victim unknowingly executes this request, it could <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-3928-unspecified-vulnerability-in-commvault-web-server-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"40376\">lead to a system<\/a> compromise.<\/p>\n<p><strong>Mitigation Guidance<\/strong><\/p>\n<p>To mitigate this vulnerability, users are advised to apply the vendor-supplied patch as soon as possible. If applying the patch is not immediately feasible, using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can serve as temporary mitigation measures. These <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-29972-server-side-request-forgery-vulnerability-in-azure-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"44771\">systems can block or alert on suspicious requests<\/a>, thereby providing a line of defense against potential exploits.<br \/>\nAs always, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-1329-local-user-arbitrary-code-execution-vulnerability-in-ibm-cics-tx\/\"  data-wpil-monitor-id=\"59408\">users should exercise caution when clicking on links or executing<\/a> actions, particularly if they originate from untrusted sources. Regular <a href=\"https:\/\/www.ameeba.com\/blog\/unmasking-cyber-threats-us-enterprises-face-increasing-security-breaches-despite-heavy-investment\/\"  data-wpil-monitor-id=\"52226\">security training can help to raise awareness of such threats<\/a> among users.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview In the ever-evolving digital realm, cybersecurity vulnerabilities can have far-reaching impacts, particularly when they involve widely used e-learning platforms like Moodle. This blog post focuses on a recently discovered critical vulnerability, CVE-2025-3638, affecting Moodle&#8217;s Brickfield tool. This vulnerability is a Cross-Site Request Forgery (CSRF) risk, a threat that enables attackers to trick victims into [&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":[90],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-34128","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-csrf"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/34128","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=34128"}],"version-history":[{"count":10,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/34128\/revisions"}],"predecessor-version":[{"id":67809,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/34128\/revisions\/67809"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=34128"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=34128"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=34128"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=34128"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=34128"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=34128"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=34128"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=34128"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=34128"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}