{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-28509","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-02-27T20:57:47.709Z","datePublished":"2026-03-06T04:16:58.761Z","dateUpdated":"2026-03-06T16:07:49.499Z"},"containers":{"cna":{"title":"LangBot has a Cross Site Scripting(XSS) Vulnerability","problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.3,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N","version":"3.1"}}],"references":[{"name":"https://github.com/langbot-app/LangBot/security/advisories/GHSA-w8gq-g4pc-xh3h","tags":["x_refsource_CONFIRM"],"url":"https://github.com/langbot-app/LangBot/security/advisories/GHSA-w8gq-g4pc-xh3h"},{"name":"https://github.com/langbot-app/LangBot/commit/614621ab7b84fe50da3c6137705cde5a99429866","tags":["x_refsource_MISC"],"url":"https://github.com/langbot-app/LangBot/commit/614621ab7b84fe50da3c6137705cde5a99429866"}],"affected":[{"vendor":"langbot-app","product":"LangBot","versions":[{"version":"< 4.8.7","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-03-06T04:16:58.761Z"},"descriptions":[{"lang":"en","value":"LangBot is a global IM bot platform designed for LLMs. Prior to version 4.8.7, LangBot’s web UI renders user-supplied raw HTML using rehypeRaw, which can lead to a cross-site scripting (XSS) vulnerability. This issue has been patched in version 4.8.7."}],"source":{"advisory":"GHSA-w8gq-g4pc-xh3h","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-06T15:50:37.548729Z","id":"CVE-2026-28509","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-03-06T16:07:49.499Z"}}]}}