{"id":46061,"date":"2025-05-30T06:25:19","date_gmt":"2025-05-30T06:25:19","guid":{"rendered":""},"modified":"2025-08-07T17:36:08","modified_gmt":"2025-08-07T23:36:08","slug":"cve-2025-39495-high-critical-vulnerability-in-boldthemes-avantage-leading-to-potential-system-compromise","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-39495-high-critical-vulnerability-in-boldthemes-avantage-leading-to-potential-system-compromise\/","title":{"rendered":"<strong>CVE-2025-39495: High-Critical Vulnerability in BoldThemes Avantage Leading to Potential System Compromise<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>In this blog post, we are discussing the high-critical vulnerability CVE-2025-39495 that poses a significant threat to BoldThemes Avantage. This vulnerability arises due to deserialization of untrusted data, thereby allowing object injection. It affects any organization, developer, or individual using Avantage versions up to 2.4.6. This <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-32401-buffer-overflow-vulnerability-in-macos-leads-to-potential-arbitrary-code-execution\/\"  data-wpil-monitor-id=\"51626\">vulnerability is significant because it could potentially lead<\/a> to a full system compromise or data leakage.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-39495<br \/>\nSeverity: High (CVSS 9.8)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-39401-unrestricted-file-upload-leading-to-potential-system-compromise-in-mojoomla-wpams\/\"  data-wpil-monitor-id=\"52044\">Potential system compromise<\/a> or data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p>\n<p>Product | Affected Versions<\/p>\n<p>BoldThemes Avantage | Up to 2.4.6<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>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=\"51737\">vulnerability exists due<\/a> to a flaw in the deserialization mechanism of BoldThemes Avantage. <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-31049-untrusted-data-deserialization-vulnerability-in-themeton-dash-exposes-systems-to-object-injection\/\"  data-wpil-monitor-id=\"53825\">Deserialization is a process in which an object<\/a> state is retrieved from a sequence of bytes. The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-47945-critical-vulnerability-in-donetick-task-management-application-allows-full-account-takeover\/\"  data-wpil-monitor-id=\"51706\">vulnerability occurs when untrusted data is deserialized by the application<\/a>. This can allow an attacker to manipulate the deserialization process, <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=\"67857\">resulting in object injection<\/a>. This could lead to various impacts, including <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-41075-high-risk-type-confusion-vulnerability-allowing-arbitrary-code-execution-with-kernel-privileges\/\"  data-wpil-monitor-id=\"51572\">arbitrary code execution<\/a>, resulting in a full system compromise or data leakage.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p>\n<p>Here is a conceptual example of how the vulnerability might be exploited:<br \/>\n&#8220;`http<br \/>\nPOST \/vulnerable\/endpoint HTTP\/1.1<br \/>\nHost: target.example.com<br \/>\nContent-Type: application\/json<br \/>\n{ &#8220;serialized_object&#8221;: &#8220;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<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview In this blog post, we are discussing the high-critical vulnerability CVE-2025-39495 that poses a significant threat to BoldThemes Avantage. This vulnerability arises due to deserialization of untrusted data, thereby allowing object injection. It affects any organization, developer, or individual using Avantage versions up to 2.4.6. This vulnerability is significant because it could potentially lead [&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,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[1],"tags":[],"vendor":[],"product":[],"attack_vector":[80],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-46061","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-rce"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.4 - aioseo.com -->\n\t<meta name=\"description\" content=\"Overview In this blog post, we are discussing the high-critical vulnerability CVE-2025-39495 that poses a significant threat to BoldThemes Avantage. This vulnerability arises due to deserialization of untrusted data, thereby allowing object injection. 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