{"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":"CVE-2025-54117: Cross-Site Scripting Vulnerability in NamelessMC Website Software<\/strong>"},"content":{"rendered":"

Overview<\/strong><\/p>\n

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<\/a> to data leakage, affecting both server owners and users. Given the widespread use of NamelessMC, understanding and addressing this vulnerability<\/a> is of high importance to ensure the continued safety and security of Minecraft servers worldwide.<\/p>\n

Vulnerability Summary<\/strong><\/p>\n

CVE ID: CVE-2025-54117
\nSeverity: Critical, CVSS score 9.0
\nAttack Vector: Network
\nPrivileges Required: User-level
\nUser Interaction: Required
\nImpact: Potential system compromise<\/a> and data leakage<\/p>\n

Affected Products<\/strong><\/p>\n

Product | Affected Versions<\/p>\n

NamelessMC | Before 2.2.3<\/p>\n

How the Exploit Works<\/strong><\/p>\n

The XSS vulnerability in NamelessMC<\/a> exists because the software does not properly sanitize user input in the dashboard text editor component. This allows an authenticated user to 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, remote code execution<\/a> on the server.<\/p>\n

Conceptual Example Code<\/strong><\/p>\n

Here’s a conceptual example of how the vulnerability might be exploited. The attacker sends a POST request<\/a> with the malicious script as the payload:<\/p>\n

POST \/dashboard\/text-editor HTTP\/1.1\nHost: targetminecraftserver.com\nContent-Type: application\/json\n{ \"text\": \"<script>malicious_code_here<\/script>\" }<\/code><\/pre>\n
This code, when 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
Remediation and Mitigation<\/strong><\/p>\n
The 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 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":"
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 […]<\/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,"_monsterinsights_skip_tracking":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":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t