https://vulnerability.circl.lu/rss/recent/all/10 Most recent entries from all 2026-09-28T20:20:06.902825+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent entries. https://vulnerability.circl.lu/vuln/cve-2025-66550 CVE-2025-66550 — Nextcloud Calendar attachments of local files are offered to downloaded 2026-09-28T20:20:06.904718+00:00

Affected: nextcloud security-advisories

Nextcloud Calendar is a calendar app for Nextcloud. Prior to 4.7.17 and 5.2.4, when a malicious user creates a calendar event with a crafted attachment that links to a download link of a file on the same Nextcloud server, the file would be downloaded without the user confirming the action. This vulnerability is fixed in 4.7.17 and 5.2.4.