{"vulnerability": "CVE-2026-81894", "sightings": [{"uuid": "52330b82-cd70-4e49-bb7f-8aba963acdc8", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-81894", "type": "seen", "source": "https://bsky.app/profile/stackflag.bsky.social/post/3mvmggqjoqc2t", "content": "CVE-2026-81894\nIf you use Concrete CMS version 9.5.2 or earlier, a person who can edit a page can place malicious code in an image caption within a Gallery block. When a visitor opens that image, the code runs in their\u2026\n\nToo many irrelevant or confusing CVEs? Use stackflag.com\n\n#CVE #infosec", "creation_timestamp": "2026-09-16T05:40:05.723737Z"}, {"uuid": "21c21996-7bc2-40af-979a-de9a2a91dd3b", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-81894", "type": "seen", "source": "https://bsky.app/profile/cyberhub.blog/post/3mwccyodofp27", "content": "\ud83d\udccc CVE-2026-81894 - Concrete CMS 9.5.2 and below is vulnerable to stored DOM-based Cross-site Scripting (XSS) via the Gallery block's per-image Caption field because the ... https://www.cyberhub.blog/cves/CVE-2026-81894", "creation_timestamp": "2026-09-24T22:37:06.675336Z"}]}