{"id":30226,"date":"2025-04-24T03:01:42","date_gmt":"2025-04-24T03:01:42","guid":{"rendered":""},"modified":"2025-09-16T12:32:07","modified_gmt":"2025-09-16T18:32:07","slug":"cve-2024-55371-critical-file-upload-vulnerability-in-wallos-backup-restore-function","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2024-55371-critical-file-upload-vulnerability-in-wallos-backup-restore-function\/","title":{"rendered":"<strong>CVE-2024-55371: Critical File Upload Vulnerability in Wallos Backup Restore Function<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The cybersecurity community is currently facing a significant challenge with the discovery of a critical vulnerability, CVE-2024-55371, found in versions 2.38.2 and below of the Wallos software system. This vulnerability, which poses a severe threat to data integrity and system security, revolves around the software&#8217;s backup restore function. Authenticated users, even those without administrative privileges, can exploit this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-13744-arbitrary-file-upload-vulnerability-in-booster-for-woocommerce-wordpress-plugin\/\"  data-wpil-monitor-id=\"34574\">vulnerability by uploading<\/a> a ZIP file containing malicious files, potentially leading to system compromise or data leakage.<br \/>\nThe severity of this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-2007-wordpress-plugin-vulnerability-leads-to-arbitrary-file-deletion-and-potential-system-compromise\/\"  data-wpil-monitor-id=\"34598\">vulnerability is emphasized by its Common Vulnerability Scoring System<\/a> (CVSS) severity score of 9.8, signifying an urgent need for mitigation. 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=\"34650\">post provides an in-depth technical summary of the vulnerability<\/a>, its potential impact, and actionable mitigation strategies.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2024-55371<br \/>\nSeverity: Critical (CVSS: 9.8)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: Low (<a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5821-critical-authentication-bypass-vulnerability-in-case-theme-user-plugin-for-wordpress\/\"  data-wpil-monitor-id=\"83286\">Authenticated User<\/a>)<br \/>\nUser Interaction: Required<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-3914-potential-arbitrary-file-uploads-and-system-compromise-in-aeropage-sync-for-airtable-wordpress-plugin\/\"  data-wpil-monitor-id=\"40573\">System Compromise<\/a>, Data Leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-1569797161\" 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>Wallos | <=2.38.2\n\n<strong>How the Exploit Works<\/strong><\/p>\n<p>The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-46348-unauthenticated-backup-exploitation-of-yeswiki-prior-to-version-4-5-4\/\"  data-wpil-monitor-id=\"41846\">exploit takes advantage of the &#8220;restore backup&#8221;<\/a> function of Wallos. This function allows any authenticated user to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-6220-piotnet-forms-plugin-vulnerability-in-wordpress-allows-arbitrary-file-uploads\/\"  data-wpil-monitor-id=\"34529\">upload and restore backups<\/a> via a ZIP file. The contents of the ZIP <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4981-critical-file-extraction-vulnerability-in-mattermost-leading-to-potential-remote-code-execution\/\"  data-wpil-monitor-id=\"63071\">file are then extracted<\/a> directly on the server.<br \/>\nAn attacker can manipulate this functionality by <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4578-sql-injection-vulnerability-in-file-provider-wordpress-plugin\/\"  data-wpil-monitor-id=\"58819\">injecting malicious files<\/a> into the ZIP file, such as a web shell. Once the web shell is uploaded and installed on the server, the attacker gains the ability to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-51073-arbitrary-code-execution-vulnerability-in-buffalo-ls210d\/\"  data-wpil-monitor-id=\"34513\">execute arbitrary<\/a> commands, potentially leading to full system compromise or data leakage.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p>\n<p>Below is a conceptual example of how the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-50123-exploitable-vulnerability-in-hozard-alarm-system-sms-authentication\/\"  data-wpil-monitor-id=\"34930\">vulnerability might be exploited<\/a>:<\/p><div id=\"ameeb-140207273\" 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<pre><code class=\"\" data-line=\"\">POST \/backup_restore HTTP\/1.1\nHost: vulnerable-wallos-server.com\nContent-Type: application\/zip\n{ &quot;backup_file&quot;: &quot;&lt;malicious_zip_file&gt;&quot; }<\/code><\/pre>\n<p>In the above example, the malicious_zip_file is a ZIP file containing the <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=\"58820\">web shell or other malicious<\/a> payload. Once the file is uploaded and extracted on the server, the attacker can use the web shell to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-28137-critical-pre-auth-remote-command-execution-vulnerability-in-totolink-a810r\/\"  data-wpil-monitor-id=\"34764\">execute arbitrary commands<\/a>.<\/p>\n<p><strong>Mitigation Guidance<\/strong><\/p>\n<p>The best course of action to mitigate the risk <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-23176-sql-injection-vulnerability-poses-serious-threat-to-data-security\/\"  data-wpil-monitor-id=\"39949\">posed by this vulnerability<\/a> is to apply the vendor-supplied patch. If a patch is not immediately available or applicable, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as temporary mitigation. These systems can help detect and prevent the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-29281-arbitrary-file-upload-vulnerability-in-perfreeblog-4-0-11\/\"  data-wpil-monitor-id=\"35519\">uploading of malicious files<\/a>, reducing the risk of exploitation.<br \/>\nRemember, early detection and prompt action are crucial to maintaining a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-3495-critical-security-vulnerability-in-delta-electronics-commgr-due-to-insufficiently-randomized-session-ids\/\"  data-wpil-monitor-id=\"35978\">secure infrastructure in the face of emerging vulnerabilities<\/a> like CVE-2024-55371.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The cybersecurity community is currently facing a significant challenge with the discovery of a critical vulnerability, CVE-2024-55371, found in versions 2.38.2 and below of the Wallos software system. This vulnerability, which poses a severe threat to data integrity and system security, revolves around the software&#8217;s backup restore function. Authenticated users, even those without administrative [&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-30226","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\/30226","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=30226"}],"version-history":[{"count":15,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/30226\/revisions"}],"predecessor-version":[{"id":75828,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/30226\/revisions\/75828"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=30226"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=30226"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=30226"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=30226"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=30226"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=30226"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=30226"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=30226"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=30226"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}