{"id":"CVE-2026-24399","state":"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 <iframe> 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.","publishedAt":"2026-01-24T00:05:37.246Z","updatedAt":"2026-01-26T16:17:53.948Z","severity":{"score":9.3,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["chattermate chattermate.chat"],"affected":[{"vendor":"chattermate","product":"chattermate.chat","versions":[{"version":"< 1.0.9","status":"affected"}]}],"references":["https://github.com/chattermate/chattermate.chat/security/advisories/GHSA-72p3-w95w-q3j4","https://github.com/chattermate/chattermate.chat/commit/ff3398031abb97ae28546eaf993fed3619eaffdd","https://github.com/chattermate/chattermate.chat/releases/tag/v1.0.9"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/24xxx/CVE-2026-24399.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-24399","state":"PUBLISHED","datePublished":"2026-01-24T00:05:37.246Z","dateUpdated":"2026-01-26T16:17:53.948Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-01-22T18:19:49.172Z"},"containers":{"cna":{"title":"ChatterMate has Stored Cross-Site Scripting (XSS) via Chatbot Input Execution","descriptions":[{"lang":"en","value":"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 <iframe> 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."}],"affected":[{"vendor":"chattermate","product":"chattermate.chat","versions":[{"version":"< 1.0.9","status":"affected"}]}],"references":[{"url":"https://github.com/chattermate/chattermate.chat/security/advisories/GHSA-72p3-w95w-q3j4","name":"https://github.com/chattermate/chattermate.chat/security/advisories/GHSA-72p3-w95w-q3j4","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/chattermate/chattermate.chat/commit/ff3398031abb97ae28546eaf993fed3619eaffdd","name":"https://github.com/chattermate/chattermate.chat/commit/ff3398031abb97ae28546eaf993fed3619eaffdd","tags":["x_refsource_MISC"]},{"url":"https://github.com/chattermate/chattermate.chat/releases/tag/v1.0.9","name":"https://github.com/chattermate/chattermate.chat/releases/tag/v1.0.9","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":9.3,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-01-24T00:05:37.246Z"},"source":{"advisory":"GHSA-72p3-w95w-q3j4","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-01-26T16:15:51.831434Z","id":"CVE-2026-24399","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-01-26T16:17:53.948Z"}}]}}}