CVE-2026-33738: Lycheeorg Lychee

Medium severity, CVSS 5.4. EPSS: 0.4% chance of exploitation in the next 30 days.

Lychee is a free, open-source photo-management tool. Prior to version 7.5.3, the photo `description` field is stored without HTML sanitization and rendered using `{!! $item->summary !!}` (Blade unescaped output) in the RSS, Atom, and JSON feed templates. The `/feed` endpoint is publicly accessible without authentication, allowing any RSS reader to execute attacker-controlled JavaScript. Version 7.5.3 fixes the issue.

Affected products

• Lycheeorg Lychee: before 7.5.3 (fixed in 7.5.3)

Published 2026-03-26. Last modified 2026-06-17.