{"vulnerability": "CVE-2026-81916", "sightings": [{"uuid": "0a4f258d-0eb3-4748-ad8a-544961bc2705", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-81916", "type": "seen", "source": "https://bsky.app/profile/hugovalters.bsky.social/post/3mvx4xxx7vv2g", "content": "CVE-2026-81916 Concrete CMS before 9.5.3: broken authorization lets users write to Express objects outside their scope, enabling data pollution and content injection. No CVSS or patch info yet. Update to https://www.valtersit.com/cve/CVE-2026-81916/ #CVE #infosec #ConcreteCMS", "creation_timestamp": "2026-09-20T11:50:03.636503Z"}, {"uuid": "90e5e369-4f32-42b9-b465-b1e86e8bfd77", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-81916", "type": "seen", "source": "https://mastodon.social/users/hugovalters/statuses/117303214274287511", "content": "CVE-2026-81916 Concrete CMS before 9.5.3: broken authorization lets users write to Express objects outside their scope, enabling data pollution and content injection. No CVSS or patch info yet. Update to https://www.valtersit.com/cve/CVE-2026-81916/ #CVE #infosec #ConcreteCMS", "creation_timestamp": "2026-09-20T11:50:04.942224Z"}]}