{"id":27914,"date":"2025-04-20T17:25:43","date_gmt":"2025-04-20T17:25:43","guid":{"rendered":""},"modified":"2025-05-30T17:54:06","modified_gmt":"2025-05-30T23:54:06","slug":"cve-2023-48243-critical-remote-code-execution-vulnerability-allowing-unauthorized-file-upload","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2023-48243-critical-remote-code-execution-vulnerability-allowing-unauthorized-file-upload\/","title":{"rendered":"<strong>CVE-2023-48243: Critical Remote Code Execution Vulnerability Allowing Unauthorized File Upload<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>CVE-2023-48243 is a severe vulnerability that could potentially be exploited by remote attackers to upload arbitrary files across all paths of an affected system. By leveraging this vulnerability, attackers can gain root privileges and execute remote codes, potentially leading to a full system compromise or data leakage. This vulnerability matters because it directly affects the confidentiality, integrity, and availability of the system, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-23176-sql-injection-vulnerability-poses-serious-threat-to-data-security\/\"  data-wpil-monitor-id=\"39953\">posing a significant threat<\/a> to any organization using the compromised software.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2023-48243<br \/>\nSeverity: Critical, with a CVSS score of 8.1<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-37297-vulnerability-in-ami-s-spx-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"33428\">Potential system<\/a> compromise and data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-588238183\" 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>Product A | Version 1.2.3 and below<br \/>\nProduct B | Version 4.5.6 and below<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>Attackers can exploit this vulnerability by crafting a malicious HTTP request that <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-2636-critical-local-file-inclusion-vulnerability-in-instawp-connect-plugin-for-wordpress\/\"  data-wpil-monitor-id=\"32099\">allows<\/a> them to upload arbitrary files to any path within the system. This <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32206-unrestricted-file-upload-vulnerability-in-labcat-processing-projects\/\"  data-wpil-monitor-id=\"32106\">file upload<\/a> is performed under the context of the application OS user, which in this case is the &#8216;root&#8217; user. This grants the attacker the same <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-31524-privilege-escalation-vulnerability-in-notfound-wp-user-profiles\/\"  data-wpil-monitor-id=\"32366\">privileges as the root user<\/a>. Once the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32579-unrestricted-file-upload-vulnerability-in-softclever-limited-sync-posts\/\"  data-wpil-monitor-id=\"32304\">file is uploaded<\/a>, the attacker can execute the uploaded file remotely, leading to remote code execution (RCE) with root privileges.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-639325825\" 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 example of how this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-50123-exploitable-vulnerability-in-hozard-alarm-system-sms-authentication\/\"  data-wpil-monitor-id=\"36100\">vulnerability might be exploited<\/a> is provided below:<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/vulnerable\/endpoint HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/json\n{\n&quot;file&quot;: {\n&quot;name&quot;: &quot;malicious_file.sh&quot;,\n&quot;content&quot;: &quot;echo &#039;Compromised system&#039; &gt; \/root\/compromised.txt&quot;\n}\n}<\/code><\/pre>\n<p>In the example above, the attacker sends a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4829-critical-buffer-overflow-vulnerability-in-totolink-http-post-request-handler\/\"  data-wpil-monitor-id=\"52245\">POST request<\/a> to the \/vulnerable\/endpoint on the target server. The request includes a JSON payload containing an example of a malicious file, which creates a text <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=\"34605\">file in the root directory of the system<\/a>. When executed, this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-26927-epc-ai-hub-unrestricted-file-upload-vulnerability-leading-to-system-compromise\/\"  data-wpil-monitor-id=\"36099\">file would indicate a compromised system<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview CVE-2023-48243 is a severe vulnerability that could potentially be exploited by remote attackers to upload arbitrary files across all paths of an affected system. By leveraging this vulnerability, attackers can gain root privileges and execute remote codes, potentially leading to a full system compromise or data leakage. This vulnerability matters because it directly affects [&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":[80],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-27914","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-rce"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/27914","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=27914"}],"version-history":[{"count":9,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/27914\/revisions"}],"predecessor-version":[{"id":46740,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/27914\/revisions\/46740"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=27914"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=27914"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=27914"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=27914"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=27914"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=27914"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=27914"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=27914"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=27914"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}