{"vulnerability": "cve-2026-81900", "sightings": [{"uuid": "90c925dc-2b5c-41b7-a169-6565c05080a2", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-81900", "type": "seen", "source": "https://bsky.app/profile/stackflag.bsky.social/post/3mvkngsrlxi2t", "content": "CVE-2026-81900 - concrete cms\nIn versions of Concrete CMS before 9.5.3, the YouTube block did not properly clean the width and height values it stored. A user who can edit blocks could insert malicious code that\u2026\n\nToo many irrelevant or confusing CVEs? Use stackflag.com\n\n#concretecms #CVE #infosec", "creation_timestamp": "2026-09-15T12:40:04.826228Z"}]}