{"metadata": {"vulnerability": "CVE-2026-81899", "count": 14, "kinds": {"milestone": 4, "sighting": 2, "kev": 0, "other": 8}}, "data": [{"timestamp": "2026-08-27T18:18:39.738Z", "date_only": false, "value": "2026-08-27T18:18:39.738Z", "kind": "milestone", "label": "Reserved", "source": "cvelistv5", "record": "CVE-2026-81899", "field": "cveMetadata.dateReserved"}, {"timestamp": "2026-09-15T17:54:58.717Z", "date_only": false, "value": "2026-09-15T17:54:58.717Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-81899", "field": "cveMetadata.datePublished"}, {"timestamp": "2026-09-15T17:54:58.717Z", "date_only": false, "value": "2026-09-15T17:54:58.717Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / ConcreteCMS", "record": "CVE-2026-81899", "field": "containers.cna.providerMetadata.dateUpdated"}, {"timestamp": "2026-09-15T18:19:26Z", "date_only": false, "value": "2026-09-15T18:19:26Z", "kind": "other", "label": "Nvd published at", "source": "github \u00b7 GHSA-3CXG-C254-578M", "record": "GHSA-3CXG-C254-578M", "field": "database_specific.nvd_published_at"}, {"timestamp": "2026-09-15T18:19:26.930Z", "date_only": false, "value": "2026-09-15T18:19:26.930", "kind": "milestone", "label": "Published", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-81899", "record": "FKIE_CVE-2026-81899", "field": "published"}, {"timestamp": "2026-09-15T18:32:36Z", "date_only": false, "value": "2026-09-15T18:32:36Z", "kind": "milestone", "label": "Published", "source": "github \u00b7 GHSA-3CXG-C254-578M", "record": "GHSA-3CXG-C254-578M", "field": "published"}, {"timestamp": "2026-09-15T18:32:36Z", "date_only": false, "value": "2026-09-15T18:32:36Z", "kind": "other", "label": "Updated", "source": "github \u00b7 GHSA-3CXG-C254-578M", "record": "GHSA-3CXG-C254-578M", "field": "modified"}, {"timestamp": "2026-09-15T19:18:32.434Z", "date_only": false, "value": "2026-09-15T19:18:32.434363Z", "kind": "other", "label": "Recorded", "source": "cvelistv5 / CISA-ADP", "record": "CVE-2026-81899", "field": "containers.adp.0.metrics.0.other.content.timestamp"}, {"timestamp": "2026-09-15T19:18:32.434Z", "date_only": false, "value": "2026-09-15T19:18:32.434363Z", "kind": "other", "label": "Recorded", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-81899", "record": "FKIE_CVE-2026-81899", "field": "metrics.ssvcV203.0.ssvcData.timestamp"}, {"timestamp": "2026-09-15T19:18:41.365Z", "date_only": false, "value": "2026-09-15T19:18:41.365Z", "kind": "other", "label": "Updated", "source": "cvelistv5", "record": "CVE-2026-81899", "field": "cveMetadata.dateUpdated"}, {"timestamp": "2026-09-15T19:18:41.365Z", "date_only": false, "value": "2026-09-15T19:18:41.365Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / CISA-ADP", "record": "CVE-2026-81899", "field": "containers.adp.0.providerMetadata.dateUpdated"}, {"timestamp": "2026-09-15T19:29:36.713Z", "date_only": false, "value": "2026-09-15T19:29:36.713247Z", "kind": "sighting", "label": "Seen", "source": "https://bsky.app/profile/cve.skyfleet.blue/post/gmhvygrxjesmj", "record": "CVE-2026-81899", "field": "creation_timestamp", "uuid": "3fc33760-0f13-4efa-b121-ed352ec2f8a3", "content": "CVE-2026-81899 - Concrete CMS 9.0 to 9.5.2 is vulnerable to Stored XSS via group folder name on the Members > Groups dashboard\nCVE ID : CVE-2026-81899\n \n Published : Sept. 15, 2026, 5:54 p.m. | 10\u00a0minutes ago\n \n Description : Concrete CMS 9.0.0 to 9.5.2 stored group folder nam...", "url": "https://bsky.app/profile/cve.skyfleet.blue/post/gmhvygrxjesmj"}, {"timestamp": "2026-09-16T06:20:06.487Z", "date_only": false, "value": "2026-09-16T06:20:06.487470Z", "kind": "sighting", "label": "Seen", "source": "https://bsky.app/profile/stackflag.bsky.social/post/3mvmioblaxp2r", "record": "CVE-2026-81899", "field": "creation_timestamp", "uuid": "022b2598-00a5-469e-a58a-065b16de5f81", "content": "CVE-2026-81899 - concrete cms\nIn Concrete CMS versions 9.0 through 9.5.2, the names of group folders are saved without being cleaned and are shown directly on the Groups dashboard. A user who can add a group\u2026\n\nToo many irrelevant or confusing CVEs? Use stackflag.com\n\n#concretecms #CVE #infosec", "url": "https://bsky.app/profile/stackflag.bsky.social/post/3mvmioblaxp2r"}, {"timestamp": "2026-09-16T19:16:15.097Z", "date_only": false, "value": "2026-09-16T19:16:15.097", "kind": "other", "label": "Updated", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-81899", "record": "FKIE_CVE-2026-81899", "field": "lastModified"}]}