CVE-2025-45091

Medium severity, CVSS 5.4. EPSS: 0.2% chance of exploitation in the next 30 days.

Seafile versions 11.0.18-Pro, 12.0.10, and 12.0.10-Pro are vulnerable to a stored Cross-Site Scripting (XSS) attack. An authenticated attacker can exploit this vulnerability by modifying their username to include a malicious XSS payload in notification and activities.

Published 2025-09-15. Last modified 2026-06-17.