{"id":69782,"date":"2025-09-01T03:15:51","date_gmt":"2025-09-01T03:15:51","guid":{"rendered":""},"modified":"2025-10-04T00:32:21","modified_gmt":"2025-10-04T06:32:21","slug":"cve-2025-55573-cross-site-scripting-vulnerability-in-quantumnous-new-api-v-0-8-5-2","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-55573-cross-site-scripting-vulnerability-in-quantumnous-new-api-v-0-8-5-2\/","title":{"rendered":"<strong>CVE-2025-55573: Cross-Site Scripting Vulnerability in QuantumNous new-api v.0.8.5.2<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>CVE-2025-55573 is a critical vulnerability identified in QuantumNous new-api v.0.8.5.2, a widely used API in various web applications. This vulnerability, classed as Cross Site Scripting (XSS), has a potential to compromise system security and cause data leakage. The importance of addressing this vulnerability promptly and efficiently cannot be overstated, given the potential for significant damage to the integrity, availability, and confidentiality of the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-54788-sql-injection-vulnerability-in-suitecrm-leading-to-potential-system-compromise-or-data-leakage\/\"  data-wpil-monitor-id=\"80213\">system and its data<\/a>.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-55573<br \/>\nSeverity: High (8.8 CVSS Score)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: Required<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-42950-sap-landscape-transformation-vulnerability-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"77560\">System compromise and potential<\/a> data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-3280477499\" 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>QuantumNous new-api | v.0.8.5.2<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The exploit takes advantage of an XSS <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-28906-command-injection-vulnerability-in-mib3-infotainment\/\"  data-wpil-monitor-id=\"77426\">vulnerability that allows the attacker to inject<\/a> malicious scripts into web pages viewed by other users. These scripts can bypass the same-origin policy, a fundamental web security mechanism, and execute on the client side, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-8939-buffer-overflow-vulnerability-in-tenda-ac20-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"78295\">leading to a multitude of potential<\/a> attacks such as stealing session cookies, performing actions on behalf of the user, or even delivering malware.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-3682316940\" 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>Below is a conceptual example of how the vulnerability might be exploited. The attacker sends a crafted HTTP request with a malicious JavaScript payload that gets <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-41683-authenticated-remote-code-execution-vulnerability-in-main-web-interface\/\"  data-wpil-monitor-id=\"78952\">executed when a user visits the affected web<\/a> page.<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/api\/v0.8.5.2\/endpoint HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/json\n{ &quot;user_input&quot;: &quot;&lt;script&gt;\/*malicious code*\/&lt;\/script&gt;&quot; }<\/code><\/pre>\n<p>In this example, the &#8220;user_input&#8221; field is not properly sanitized, allowing the attacker&#8217;s script to be embedded into the web page.<\/p>\n<p><strong>Mitigation Guidance<\/strong><\/p>\n<p>To mitigate this vulnerability, it is recommended to apply the vendor patch as soon as it becomes available. As a temporary measure, you can use a Web Application Firewall (WAF) or Intrusion Detection System (IDS) to detect and block XSS attacks. However, these measures should not replace patching the system, as they only provide a temporary and potentially incomplete solution.<br \/>\nRemember, staying up-to-date with patches and updates is a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-20263-critical-buffer-overflow-vulnerability-in-cisco-secure-firewall\/\"  data-wpil-monitor-id=\"78180\">critical part of maintaining a secure<\/a> system. Regularly monitor for updates to QuantumNous new-api and other <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-25180-underprivileged-software-manipulates-gpu-system-calls-for-unauthorized-access\/\"  data-wpil-monitor-id=\"88764\">software your system<\/a> relies on to ensure your defenses are current.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview CVE-2025-55573 is a critical vulnerability identified in QuantumNous new-api v.0.8.5.2, a widely used API in various web applications. This vulnerability, classed as Cross Site Scripting (XSS), has a potential to compromise system security and cause data leakage. The importance of addressing this vulnerability promptly and efficiently cannot be overstated, given the potential for significant [&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":[81],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-69782","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-xss"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/69782","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=69782"}],"version-history":[{"count":7,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/69782\/revisions"}],"predecessor-version":[{"id":81574,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/69782\/revisions\/81574"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=69782"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=69782"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=69782"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=69782"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=69782"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=69782"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=69782"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=69782"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=69782"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}