{"id":71266,"date":"2025-09-04T17:47:27","date_gmt":"2025-09-04T17:47:27","guid":{"rendered":""},"modified":"2025-09-10T07:40:28","modified_gmt":"2025-09-10T13:40:28","slug":"cve-2025-43960-denial-of-service-dos-and-php-object-injection-in-adminer-4-8-1","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-43960-denial-of-service-dos-and-php-object-injection-in-adminer-4-8-1\/","title":{"rendered":"<strong>CVE-2025-43960: Denial of Service (DoS) and PHP Object Injection in Adminer 4.8.1<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The CVE-2025-43960 vulnerability is a severe flaw found in Adminer 4.8.1, a popular database management tool. The vulnerability emerges when the software utilizes Monolog for logging, leading to a Denial of Service (DoS) scenario and PHP Object Injection issues. This vulnerability primarily affects system administrators and web developers who employ <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-55158-critical-memory-management-vulnerability-in-vim-text-editor\/\"  data-wpil-monitor-id=\"78878\">Adminer<\/a> 4.8.1 to manage their databases. The implications of this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7734-critical-gitlab-ce-ee-vulnerability-allows-unauthorized-actions-by-attackers\/\"  data-wpil-monitor-id=\"79540\">vulnerability are substantial as it allows<\/a> unauthenticated, remote attackers to trigger excessive memory usage, which can cause a system to crash or become unresponsive.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-43960<br \/>\nSeverity: Critical (CVSS: 8.6)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: Denial of Service and <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7384-php-object-injection-vulnerability-in-wordpress-plugin-leads-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"79012\">PHP Object Injection leading to potential system<\/a> compromise or data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-2367257705\" 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>Adminer | 4.8.1<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2020-9322-statamic-core-xss-vulnerability-leading-to-unauthorized-admin-account-creation\/\"  data-wpil-monitor-id=\"80294\">vulnerability lies in the way Adminer<\/a> 4.8.1, when using Monolog for logging, handles serialized payloads. Attackers can craft a malicious serialized object (e.g., using s:1000000000), causing excessive memory consumption. This high memory usage can render Adminer&#8217;s user interface unresponsive, leading to a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-20134-critical-denial-of-service-vulnerability-in-cisco-secure-firewall-software\/\"  data-wpil-monitor-id=\"81110\">Denial of Service<\/a>. If multiple simultaneous requests are made, the server can crash entirely, necessitating manual intervention for recovery. The same <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-54652-path-traversal-vulnerability-in-virtualization-base-module\/\"  data-wpil-monitor-id=\"78889\">vulnerability also opens up a path<\/a> for PHP Object Injection.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-2401085949\" 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>The following is a conceptual example of a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-7457-macos-authorization-model-exploit-leading-to-potential-mitm-attacks\/\"  data-wpil-monitor-id=\"79961\">potential exploit<\/a>. It entails a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-24000-authentication-bypass-vulnerability-in-wpexperts-post-smtp-plugin\/\"  data-wpil-monitor-id=\"78999\">POST request to a vulnerable<\/a> endpoint, with the body of the request containing a malicious serialized payload.<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/vulnerable\/endpoint HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/json\n{ &quot;malicious_payload&quot;: &quot;s:1000000000&quot; }<\/code><\/pre>\n<p><strong>Recommended Mitigation Measures<\/strong><\/p>\n<p>In response to this vulnerability, it is recommended that users immediately apply the patch provided by the vendor. In the interim, while the patch is being applied, users can also use a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) as temporary mitigation measures. It is essential to stay vigilant and apply the necessary security measures to prevent <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49759-sql-injection-vulnerability-in-sql-server-potentially-enabling-privilege-escalation-and-data-leakage\/\"  data-wpil-monitor-id=\"79179\">potential system compromise or data<\/a> leakage.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The CVE-2025-43960 vulnerability is a severe flaw found in Adminer 4.8.1, a popular database management tool. The vulnerability emerges when the software utilizes Monolog for logging, leading to a Denial of Service (DoS) scenario and PHP Object Injection issues. This vulnerability primarily affects system administrators and web developers who employ Adminer 4.8.1 to manage [&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":[87],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-71266","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-dos"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/71266","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=71266"}],"version-history":[{"count":9,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/71266\/revisions"}],"predecessor-version":[{"id":73557,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/71266\/revisions\/73557"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=71266"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=71266"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=71266"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=71266"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=71266"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=71266"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=71266"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=71266"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=71266"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}