https://vulnerability.circl.lu Contains only the most 10 recent sightings. http://www.rssboard.org/rss-specification python-feedgen en Wed, 16 Sep 2026 23:17:56 +0000 https://vulnerability.circl.lu/sighting/3e9045b6-3964-4086-a136-e677d4871fda/export {"uuid": "3e9045b6-3964-4086-a136-e677d4871fda", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-81911", "type": "seen", "source": "https://bsky.app/profile/hugovalters.bsky.social/post/3mvknyn2eqp2e", "content": "CVE-2026-81911 Concrete CMS 9.0.0-9.5.2 Stored XSS via the custom_slot save_template endpoint. No CVSS assigned and no patch available, so treat as unpatched. Restrict board edit permissions and sanitize https://www.valtersit.com/cve/CVE-2026-81911/ #CVE #infosec #ConcreteCMS", "creation_timestamp": "2026-09-15T12:50:03.994304Z"} {"uuid": "3e9045b6-3964-4086-a136-e677d4871fda", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-81911", "type": "seen", "source": "https://bsky.app/profile/hugovalters.bsky.social/post/3mvknyn2eqp2e", "content": "CVE-2026-81911 Concrete CMS 9.0.0-9.5.2 Stored XSS via the custom_slot save_template endpoint. No CVSS assigned and no patch available, so treat as unpatched. Restrict board edit permissions and sanitize https://www.valtersit.com/cve/CVE-2026-81911/ #CVE #infosec #ConcreteCMS", "creation_timestamp": "2026-09-15T12:50:03.994304Z"} https://vulnerability.circl.lu/sighting/3e9045b6-3964-4086-a136-e677d4871fda/export Tue, 15 Sep 2026 12:50:03 +0000