https://db.gcve.eu/sightings/feed 2026-05-25T21:34:23.205539+00:00 Vulnerability-Lookup info@gcve.eu python-feedgen Contains only the most 10 recent sightings. https://db.gcve.eu/sighting/e0d3ae54-5adf-420e-8875-13366ecf62e5/export 2026-05-25T21:34:23.557690+00:00 cedric http://db.gcve.eu/user/cedric {"uuid": "e0d3ae54-5adf-420e-8875-13366ecf62e5", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2018-21255", "type": "seen", "source": "https://t.me/cibsecurity/12896", "content": "ATENTION\u203c New - CVE-2018-21255\n\nAn issue was discovered in Mattermost Server before 5.1. Non-members of a channel could use the Channel PATCH API to modify that channel.\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "creation_timestamp": "2020-06-19T20:55:30.000000Z"} 2020-06-19T20:55:30+00:00