{"id":64265,"date":"2025-08-23T14:08:29","date_gmt":"2025-08-23T14:08:29","guid":{"rendered":""},"modified":"2025-11-02T11:12:44","modified_gmt":"2025-11-02T17:12:44","slug":"cve-2025-54117-cross-site-scripting-vulnerability-in-namelessmc-website-software","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-54117-cross-site-scripting-vulnerability-in-namelessmc-website-software\/","title":{"rendered":"<strong>CVE-2025-54117: Cross-Site Scripting Vulnerability in NamelessMC Website Software<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>This blog post outlines a critical cybersecurity vulnerability in the popular Minecraft server website software, NamelessMC, known as CVE-2025-54117. The vulnerability, identified as a Cross-Site Scripting (XSS) issue, is found in versions of NamelessMC before 2.2.3. It has the <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=\"73701\">potential to compromise the entire system or lead<\/a> to data leakage, affecting both server owners and users. Given the widespread use of NamelessMC, understanding and <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-58280-object-heap-address-exposure-vulnerability-in-ark-ets\/\"  data-wpil-monitor-id=\"87255\">addressing this vulnerability<\/a> is of high importance to ensure the continued safety and security of Minecraft servers worldwide.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-54117<br \/>\nSeverity: Critical, CVSS score 9.0<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: User-level<br \/>\nUser Interaction: Required<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-27055-memory-corruption-leads-to-potential-system-compromise-during-image-encoding\/\"  data-wpil-monitor-id=\"74298\">Potential system compromise<\/a> and data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-1092164880\" 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: 720px;\">\r\n  <h2 style=\"margin-top: 0; font-size: 22px; font-weight: 600; display: flex; align-items: center; letter-spacing: -0.02em;\">\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"display: inline-flex; align-items: center; margin-right: 10px;\">\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: 42px; height: 42px;\" \/>\r\n    <\/a>\r\n    Share secrets securely\r\n  <\/h2>\r\n\r\n  <p style=\"margin-bottom: 14px; color: #d1d5db;\">\r\n    Ameeba is private infrastructure for communication and sensitive work built on encrypted identity instead of exposed corporate identity systems.\r\n  <\/p>\r\n\r\n  <p style=\"margin-bottom: 18px; color: #a1a1aa;\">\r\n    Passwords, credentials, confidential files, screenshots, internal discussions, sensitive AI context, and private coordination should not become exposed across ordinary communication platforms.\r\n  <\/p>\r\n\r\n  <ul style=\"list-style: none; padding-left: 0; margin-bottom: 24px; color: #e4e4e7;\">\r\n    <li style=\"margin-bottom: 8px;\">\u2022 Encrypted identity<\/li>\r\n    <li style=\"margin-bottom: 8px;\">\u2022 Private Spaces for organizations and teams<\/li>\r\n    <li style=\"margin-bottom: 8px;\">\u2022 End-to-end encrypted chat, calls, files, and notes<\/li>\r\n    <li style=\"margin-bottom: 8px;\">\u2022 Sensitive AI work and protected collaboration<\/li>\r\n    <li>\u2022 Built for information that cannot leak<\/li>\r\n  <\/ul>\r\n\r\n  <p style=\"font-style: italic; font-weight: 600; margin-bottom: 24px; color: #ffffff;\">\r\n    Our mission is to secure human work alongside AI.\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: 8px; font-weight: 500;\">\r\n      Download Ameeba\r\n    <\/a>\r\n\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"border: 1px solid #ffffff; color: #ffffff; padding: 10px 20px; text-decoration: none; border-radius: 8px; font-weight: 500;\">\r\n      Learn More\r\n    <\/a>\r\n  <\/div>\r\n<\/div><\/div>\n<p>Product | Affected Versions<\/p>\n<p>NamelessMC | Before 2.2.3<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The XSS vulnerability in <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-13974-high-risk-business-logic-vulnerability-in-up2date-component-of-sophos-firewall\/\"  data-wpil-monitor-id=\"73890\">NamelessMC<\/a> exists because the software does not properly sanitize user input in the dashboard text editor component. This allows an authenticated user to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-28243-html-injection-vulnerability-in-alteryx-server\/\"  data-wpil-monitor-id=\"72304\">inject arbitrary web scripts or HTML<\/a> into the application. When this malicious script is executed in the browser of a victim, it can lead to various undesirable outcomes including stealing user sessions, defacing web sites, or even, potentially, <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=\"74603\">remote code execution<\/a> on the server.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-1604363918\" 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&#8217;s a conceptual example of how the vulnerability might be exploited. The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-9408-server-side-request-forgery-attack-in-eclipse-glassfish\/\"  data-wpil-monitor-id=\"77402\">attacker sends a POST request<\/a> with the malicious script as the payload:<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/dashboard\/text-editor HTTP\/1.1\nHost: targetminecraftserver.com\nContent-Type: application\/json\n{ &quot;text&quot;: &quot;&lt;script&gt;malicious_code_here&lt;\/script&gt;&quot; }<\/code><\/pre>\n<p>This code, when <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-52904-command-execution-vulnerability-in-file-browser-version-2-32-0\/\"  data-wpil-monitor-id=\"92230\">executed in the browser<\/a> of an unsuspecting user, could lead to a range of destructive actions, depending on the nature of the injected script.<\/p>\n<p><strong>Remediation and 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=\"73482\">vulnerability has been fixed in version<\/a> 2.2.4 of NamelessMC. Users are strongly encouraged to update their software to this version or any later <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-47136-integer-underflow-vulnerability-in-indesign-desktop-versions-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"79741\">version to protect their systems<\/a>. In the interim, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can be used to mitigate the risk. These tools can help to detect and block malicious scripts before they reach the application.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview This blog post outlines a critical cybersecurity vulnerability in the popular Minecraft server website software, NamelessMC, known as CVE-2025-54117. The vulnerability, identified as a Cross-Site Scripting (XSS) issue, is found in versions of NamelessMC before 2.2.3. It has the potential to compromise the entire system or lead to data leakage, affecting both server owners [&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":[80,81],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-64265","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-rce","attack_vector-xss"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/64265","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=64265"}],"version-history":[{"count":10,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/64265\/revisions"}],"predecessor-version":[{"id":85444,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/64265\/revisions\/85444"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=64265"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=64265"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=64265"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=64265"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=64265"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=64265"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=64265"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=64265"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=64265"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}