{"id":"CVE-2026-24399","aliases":["EUVD-2026-4613","GHSA-72p3-w95w-q3j4"],"status":"published","title":"ChatterMate has Stored Cross-Site Scripting (XSS) via Chatbot Input Execution","description":"ChatterMate is a no-code AI chatbot agent framework. In versions 1.0.8 and below, the chatbot accepts and executes malicious HTML/JavaScript payloads when supplied as chat input. Specifically, an \u003ciframe\u003e payload containing a javascript: URI can be processed and executed in the browser context. This allows access to sensitive client-side data such as localStorage tokens and cookies, resulting in client-side injection. This issue has been fixed in version 1.0.9.","severity":{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00336,"percentile":0.27265,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2026-01-24T00:05:37Z","modified":"2026-10-28T02:30:55Z","products":[{"vendor":"chattermate","product":"chattermate"},{"vendor":"chattermate","product":"chattermate.chat"}],"references":[{"url":"https://github.com/chattermate/chattermate.chat/security/advisories/GHSA-72p3-w95w-q3j4","tags":["x_refsource_CONFIRM","Exploit","Vendor Advisory","advisory"]},{"url":"https://github.com/chattermate/chattermate.chat/commit/ff3398031abb97ae28546eaf993fed3619eaffdd","tags":["x_refsource_MISC","Patch","fix"]},{"url":"https://github.com/chattermate/chattermate.chat/releases/tag/v1.0.9","tags":["x_refsource_MISC","Product","Release Notes","web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/24xxx/CVE-2026-24399.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-24399","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-24399","title":"ChatterMate has Stored Cross-Site Scripting (XSS) via Chatbot Input Execution","description":"ChatterMate is a no-code AI chatbot agent framework. In versions 1.0.8 and below, the chatbot accepts and executes malicious HTML/JavaScript payloads when supplied as chat input. Specifically, an \u003ciframe\u003e payload containing a javascript: URI can be processed and executed in the browser context. This allows access to sensitive client-side data such as localStorage tokens and cookies, resulting in client-side injection. This issue has been fixed in version 1.0.9.","status":"published","published":"2026-01-24T00:05:37.246Z","modified":"2026-01-26T16:17:53.948Z","cvss":[{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N","level":"critical","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:19:50.575061Z"}],"euvd":[{"id":"EUVD-2026-4613","description":"ChatterMate is a no-code AI chatbot agent framework. In versions 1.0.8 and below, the chatbot accepts and executes malicious HTML/JavaScript payloads when supplied as chat input. Specifically, an \u003ciframe\u003e payload containing a javascript: URI can be processed and executed in the browser context. This allows access to sensitive client-side data such as localStorage tokens and cookies, resulting in client-side injection. This issue has been fixed in version 1.0.9.","status":"published","published":"2026-01-24T00:05:37Z","modified":"2026-01-26T16:17:53Z","cvss":[{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N","level":"critical"}],"updated_at":"2026-11-02T19:48:47.293439Z"}],"nvd":[{"id":"CVE-2026-24399","description":"ChatterMate is a no-code AI chatbot agent framework. In versions 1.0.8 and below, the chatbot accepts and executes malicious HTML/JavaScript payloads when supplied as chat input. Specifically, an \u003ciframe\u003e payload containing a javascript: URI can be processed and executed in the browser context. This allows access to sensitive client-side data such as localStorage tokens and cookies, resulting in client-side injection. This issue has been fixed in version 1.0.9.","status":"published","published":"2026-01-24T01:15:50.393Z","modified":"2026-06-17T10:23:00.46Z","cvss":[{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N","level":"critical","assessor":"secondary"},{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:12:04.423757Z"}],"osv":[{"id":"CVE-2026-24399","title":"ChatterMate has Stored Cross-Site Scripting (XSS) via Chatbot Input Execution","description":"ChatterMate is a no-code AI chatbot agent framework. In versions 1.0.8 and below, the chatbot accepts and executes malicious HTML/JavaScript payloads when supplied as chat input. Specifically, an \u003ciframe\u003e payload containing a javascript: URI can be processed and executed in the browser context. This allows access to sensitive client-side data such as localStorage tokens and cookies, resulting in client-side injection. This issue has been fixed in version 1.0.9.","status":"published","published":"2026-01-24T00:05:37.246Z","modified":"2026-10-28T02:30:55.976455405Z","cvss":[{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N","level":"critical"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:44:59.079784Z"}]}}