CVE-2026-25575: Tum Navigatum

High severity, CVSS 7.5. EPSS: 0.6% chance of exploitation in the next 30 days.

NavigaTUM is a website and API to search for rooms, buildings and other places. Prior to commit 86f34c7, there is a path traversal vulnerability in the propose_edits endpoint allows unauthenticated users to overwrite files in directories writable by the application user (e.g., /cdn). By supplying unsanitized file keys containing traversal sequences (e.g., ../../) in the JSON payload, an attacker can escape the intended temporary directory and replace public facing images or fill the server's storage. This issue has been patched via commit 86f34c7.

Affected products

• Tum Navigatum: before 2026-02-03 (fixed in 2026-02-03)

Published 2026-02-04. Last modified 2026-06-17.