{"metadata": {"vulnerability": "CVE-2026-109300", "count": 14, "kinds": {"milestone": 4, "sighting": 1, "kev": 0, "other": 9}}, "data": [{"timestamp": "2026-09-27T00:00:00Z", "date_only": false, "value": "2026-09-27T00:00:00.000Z", "kind": "other", "label": "Made public", "source": "cvelistv5 / VulnCheck", "record": "CVE-2026-109300", "field": "containers.cna.datePublic"}, {"timestamp": "2026-10-12T14:13:39.026Z", "date_only": false, "value": "2026-10-12T14:13:39.026Z", "kind": "milestone", "label": "Reserved", "source": "cvelistv5", "record": "CVE-2026-109300", "field": "cveMetadata.dateReserved"}, {"timestamp": "2026-10-12T16:04:58.200Z", "date_only": false, "value": "2026-10-12T16:04:58.200Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-109300", "field": "cveMetadata.datePublished"}, {"timestamp": "2026-10-12T16:04:58.200Z", "date_only": false, "value": "2026-10-12T16:04:58.200Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / VulnCheck", "record": "CVE-2026-109300", "field": "containers.cna.providerMetadata.dateUpdated"}, {"timestamp": "2026-10-12T17:09:14.709Z", "date_only": false, "value": "2026-10-12T17:09:14.709415Z", "kind": "sighting", "label": "Seen", "source": "https://infosec.exchange/users/cve/statuses/117429039961976998", "record": "CVE-2026-109300", "field": "creation_timestamp", "uuid": "cd4e2499-22aa-4fc1-8299-31a5c55d197b", "content": "CVE-2026-109300 Open WebUI 0.6.31 before 0.11.4 Stored XSS via Tool-Call Embeds Open WebUI from 0.6.31 before 0.11.4 contains a stored cross-site scripting vulnerability in its Markdown renderer, which treats user-authored tool-call details blocks as tool output and mounts their embeds attribute in script-enabled iframes. Authenticated users can post crafted channel messages, chat messages, or citation content that runs JavaScript in viewers' browsers, enabling in-app phishing, or session hijacking where iframeSandboxAllowSameOrigin is enabled.\nhttps://www.cve.org/CVERecord?id=CVE-2026-109300https://github.com/open-webui/open-webui/security/advisories/GHSA-9wj4-mcm3-ppj6https://www.vulncheck.com/advisories/open-webui-0.6.31-before-0.11.4-stored-xss-via-tool-call-embeds#open-webui#CVE_2026_109300#bot", "url": "https://infosec.exchange/users/cve/statuses/117429039961976998"}, {"timestamp": "2026-10-12T17:17:23Z", "date_only": false, "value": "2026-10-12T17:17:23Z", "kind": "other", "label": "Nvd published at", "source": "github \u00b7 GHSA-FC6P-2J86-RWXM", "record": "GHSA-FC6P-2J86-RWXM", "field": "database_specific.nvd_published_at"}, {"timestamp": "2026-10-12T17:17:23.700Z", "date_only": false, "value": "2026-10-12T17:17:23.700", "kind": "milestone", "label": "Published", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-109300", "record": "FKIE_CVE-2026-109300", "field": "published"}, {"timestamp": "2026-10-12T18:31:46Z", "date_only": false, "value": "2026-10-12T18:31:46Z", "kind": "milestone", "label": "Published", "source": "github \u00b7 GHSA-FC6P-2J86-RWXM", "record": "GHSA-FC6P-2J86-RWXM", "field": "published"}, {"timestamp": "2026-10-12T18:31:46Z", "date_only": false, "value": "2026-10-12T18:31:46Z", "kind": "other", "label": "Updated", "source": "github \u00b7 GHSA-FC6P-2J86-RWXM", "record": "GHSA-FC6P-2J86-RWXM", "field": "modified"}, {"timestamp": "2026-10-13T18:09:25.448Z", "date_only": false, "value": "2026-10-13T18:09:25.448143Z", "kind": "other", "label": "Recorded", "source": "cvelistv5 / CISA-ADP", "record": "CVE-2026-109300", "field": "containers.adp.0.metrics.0.other.content.timestamp"}, {"timestamp": "2026-10-13T18:09:25.448Z", "date_only": false, "value": "2026-10-13T18:09:25.448143Z", "kind": "other", "label": "Recorded", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-109300", "record": "FKIE_CVE-2026-109300", "field": "metrics.ssvcV203.0.ssvcData.timestamp"}, {"timestamp": "2026-10-13T18:09:47.634Z", "date_only": false, "value": "2026-10-13T18:09:47.634Z", "kind": "other", "label": "Updated", "source": "cvelistv5", "record": "CVE-2026-109300", "field": "cveMetadata.dateUpdated"}, {"timestamp": "2026-10-13T18:09:47.634Z", "date_only": false, "value": "2026-10-13T18:09:47.634Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / CISA-ADP", "record": "CVE-2026-109300", "field": "containers.adp.0.providerMetadata.dateUpdated"}, {"timestamp": "2026-10-15T15:55:45.630Z", "date_only": false, "value": "2026-10-15T15:55:45.630", "kind": "other", "label": "Updated", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-109300", "record": "FKIE_CVE-2026-109300", "field": "lastModified"}]}