CVE-2026-28509

{"id": "CVE-2026-28509", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "[email protected]", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 4.2, "exploitabilityScore": 2.1}]}, "published": "2026-03-06T05:16:35.590", "references": [{"url": "https://github.com/langbot-app/LangBot/commit/614621ab7b84fe50da3c6137705cde5a99429866", "source": "[email protected]"}, {"url": "https://github.com/langbot-app/LangBot/security/advisories/GHSA-w8gq-g4pc-xh3h", "source": "[email protected]"}], "vulnStatus": "Received", "weaknesses": [{"type": "Primary", "source": "[email protected]", "description": [{"lang": "en", "value": "CWE-79"}]}], "descriptions": [{"lang": "en", "value": "LangBot is a global IM bot platform designed for LLMs. Prior to version 4.8.7, LangBot\u2019s 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."}], "lastModified": "2026-03-06T05:16:35.590", "sourceIdentifier": "[email protected]"}