CVE-2025-15549: Fluentcms

Medium severity, CVSS 4.8. EPSS: 0.3% chance of exploitation in the next 30 days.

FluentCMS 2026 contains a stored cross-site scripting vulnerability that allows authenticated administrators to upload SVG files with embedded JavaScript via the File Management module. Attackers can upload malicious SVG files that execute JavaScript in the browser of any user accessing the uploaded file URL.

Affected products

• Fluentcms Fluentcms: up to and including 0.0.5

Published 2026-01-29. Last modified 2026-06-17.