{"id":57021,"date":"2025-07-03T20:17:38","date_gmt":"2025-07-03T20:17:38","guid":{"rendered":""},"modified":"2025-10-22T19:04:55","modified_gmt":"2025-10-23T01:04:55","slug":"cve-2025-52725-critical-deserialization-of-untrusted-data-vulnerability-in-couponxxl","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-52725-critical-deserialization-of-untrusted-data-vulnerability-in-couponxxl\/","title":{"rendered":"<strong>CVE-2025-52725: Critical Deserialization of Untrusted Data Vulnerability in CouponXxL<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The CVE-2025-52725 vulnerability is a critical cybersecurity flaw identified within the CouponXxL system, particularly affecting versions up to 3.0.0. Originating from untrusted data deserialization, this vulnerability can potentially allow an attacker to inject malicious objects into the system, leading to a possible system compromise or data leakage. Given the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49253-high-severity-php-remote-file-inclusion-vulnerability-in-thembay-lasa\/\"  data-wpil-monitor-id=\"63711\">severity of the vulnerability<\/a>, it&#8217;s essential for users, system administrators, and cybersecurity professionals to understand the nature of this flaw, its implications, and possible mitigation methods.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-52725<br \/>\nSeverity: Critical, with a CVSS score of 9.8<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-6510-critical-vulnerability-in-netgear-ex6100-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"63643\">Potential system<\/a> compromise or data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-592617588\" 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: 720px;\">\r\n  <h2 style=\"margin-top: 0; font-size: 22px; font-weight: 600; display: flex; align-items: center; letter-spacing: -0.02em;\">\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"display: inline-flex; align-items: center; margin-right: 10px;\">\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: 42px; height: 42px;\" \/>\r\n    <\/a>\r\n    Share secrets securely\r\n  <\/h2>\r\n\r\n  <p style=\"margin-bottom: 14px; color: #d1d5db;\">\r\n    Ameeba is private infrastructure for communication and sensitive work built on encrypted identity instead of exposed corporate identity systems.\r\n  <\/p>\r\n\r\n  <p style=\"margin-bottom: 18px; color: #a1a1aa;\">\r\n    Passwords, credentials, confidential files, screenshots, internal discussions, sensitive AI context, and private coordination should not become exposed across ordinary communication platforms.\r\n  <\/p>\r\n\r\n  <ul style=\"list-style: none; padding-left: 0; margin-bottom: 24px; color: #e4e4e7;\">\r\n    <li style=\"margin-bottom: 8px;\">\u2022 Encrypted identity<\/li>\r\n    <li style=\"margin-bottom: 8px;\">\u2022 Private Spaces for organizations and teams<\/li>\r\n    <li style=\"margin-bottom: 8px;\">\u2022 End-to-end encrypted chat, calls, files, and notes<\/li>\r\n    <li style=\"margin-bottom: 8px;\">\u2022 Sensitive AI work and protected collaboration<\/li>\r\n    <li>\u2022 Built for information that cannot leak<\/li>\r\n  <\/ul>\r\n\r\n  <p style=\"font-style: italic; font-weight: 600; margin-bottom: 24px; color: #ffffff;\">\r\n    Our mission is to secure human work alongside AI.\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: 8px; font-weight: 500;\">\r\n      Download Ameeba\r\n    <\/a>\r\n\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"border: 1px solid #ffffff; color: #ffffff; padding: 10px 20px; text-decoration: none; border-radius: 8px; font-weight: 500;\">\r\n      Learn More\r\n    <\/a>\r\n  <\/div>\r\n<\/div><\/div>\n<p>Product | Affected Versions<\/p>\n<p>CouponXxL | up to 3.0.0<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The flaw is a deserialization of untrusted data vulnerability, which <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-52921-critical-vulnerability-in-innoshop-allows-code-execution-by-authenticated-attackers\/\"  data-wpil-monitor-id=\"63498\">allows the attacker to execute arbitrary code<\/a> with the help of object injection. In simpler terms, the attacker can send serialized (converted into a format for storing or transferring) malicious <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5866-critical-vulnerability-in-rt-thread-5-1-0-potentially-leading-to-system-compromise-or-data-leakage\/\"  data-wpil-monitor-id=\"63808\">data to the CouponXxL system<\/a>. Upon deserialization (converting back into the original data format), the malicious <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-48978-arbitrary-code-execution-vulnerability-in-ncr-itm-web-terminal\/\"  data-wpil-monitor-id=\"63554\">code is executed<\/a>, leading to the exploitation of the system.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-2335656681\" 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 how an attacker might exploit this vulnerability. The attacker sends a POST <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-48921-cross-site-request-forgery-vulnerability-in-drupal-open-social\/\"  data-wpil-monitor-id=\"65027\">request with a malicious payload to a vulnerable<\/a> endpoint.<\/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;&lt;serialized malicious object&gt;&quot; }<\/code><\/pre>\n<p><strong>Mitigation<\/strong><\/p>\n<p>The ideal <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5310-remote-code-execution-vulnerability-in-dover-fueling-solutions-progauge-maglink-lx-consoles\/\"  data-wpil-monitor-id=\"65542\">solution to this vulnerability<\/a> is to apply the vendor patch as soon as it becomes available. However, if the patch is not available yet, a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can be utilized as a temporary mitigation to detect and prevent the malicious <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5868-critical-vulnerability-in-rt-thread-leading-to-system-compromise-and-data-leakage\/\"  data-wpil-monitor-id=\"63858\">data from reaching the system<\/a>.<br \/>\nIn the long run, it&#8217;s recommended to adopt secure coding practices, including <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-8279-critical-input-validation-vulnerability-in-gitlab-language-server\/\"  data-wpil-monitor-id=\"68782\">validating and sanitizing all input<\/a> data, to prevent such vulnerabilities. It&#8217;s also advisable to keep the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7093-critical-vulnerability-in-belkin-f9k1122-1-00-33-impacting-system-security-and-data-integrity\/\"  data-wpil-monitor-id=\"91079\">system and its components updated with the latest security<\/a> patches and updates.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The CVE-2025-52725 vulnerability is a critical cybersecurity flaw identified within the CouponXxL system, particularly affecting versions up to 3.0.0. Originating from untrusted data deserialization, this vulnerability can potentially allow an attacker to inject malicious objects into the system, leading to a possible system compromise or data leakage. Given the severity of the vulnerability, it&#8217;s [&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-57021","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\/57021","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=57021"}],"version-history":[{"count":10,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/57021\/revisions"}],"predecessor-version":[{"id":84098,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/57021\/revisions\/84098"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=57021"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=57021"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=57021"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=57021"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=57021"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=57021"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=57021"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=57021"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=57021"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}