{"id":86019,"date":"2025-12-12T04:12:22","date_gmt":"2025-12-12T04:12:22","guid":{"rendered":""},"modified":"-0001-11-30T00:00:00","modified_gmt":"-0001-11-30T00:00:00","slug":"cve-2025-51503-stored-cross-site-scripting-vulnerability-in-microweber-cms-2-0","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-51503-stored-cross-site-scripting-vulnerability-in-microweber-cms-2-0\/","title":{"rendered":"CVE-2025-51503: Stored Cross-Site Scripting Vulnerability in Microweber CMS 2.0<\/strong>"},"content":{"rendered":"

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

This report analyzes the vulnerability CVE-2025-51503, a severe Stored Cross-Site Scripting (XSS) flaw in Microweber CMS 2.0. This vulnerability allows attackers to inject malicious scripts into user profile fields, leading to arbitrary JavaScript execution in admin browsers. It poses a significant security risk to any organization using Microweber CMS 2.0 for their content management system.<\/p>\n

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

CVE ID: CVE-2025-51503
\nSeverity: High – CVSS 7.6
\nAttack Vector: Stored Cross-Site Scripting (XSS)
\nPrivileges Required: None
\nUser Interaction: Required
\nImpact: Potential system compromise or data leakage<\/p>\n

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

Product | Affected Versions<\/p>\n

Microweber CMS | 2.0<\/p>\n

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

The vulnerability occurs because Microweber CMS 2.0 does not adequately sanitize user profile inputs. This allows an attacker to inject malicious scripts into these fields. When an admin user views this profile, the injected JavaScript is executed in the admin’s browser context. This could potentially lead to administrative account compromise, resulting in unauthorized access to the system or exposure of sensitive data.<\/p>\n

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

Below is a conceptual example of how the vulnerability might be exploited. An attacker may send a malicious payload like this through the user profile fields:<\/p>\n

POST \/profile\/update HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/json\n{ \"username\": \"test_user\", \"profile_field\": \"<script>malicious_script_here<\/script>\" }<\/code><\/pre>\n
In this example, “malicious_script_here” would be replaced with the actual malicious JavaScript that the attacker wishes to execute in the admin’s browser.<\/p>\n
Mitigation Guidance<\/strong><\/p>\n
Users are advised to update to the latest version of Microweber CMS or apply the vendor patch to fix this vulnerability. As temporary mitigation, users can also use a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) to detect and prevent the execution of malicious scripts.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview This report analyzes the vulnerability CVE-2025-51503, a severe Stored Cross-Site Scripting (XSS) flaw in Microweber CMS 2.0. This vulnerability allows attackers to inject malicious scripts into user profile fields, leading to arbitrary JavaScript execution in admin browsers. It poses a significant security risk to any organization using Microweber CMS 2.0 for their content management […]<\/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":[],"tags":[],"vendor":[],"product":[],"attack_vector":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-86019","post","type-post","status-publish","format-standard","hentry"],"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