CVE-2024-28190: Contao

Medium severity, CVSS 5.4. EPSS: 0.5% chance of exploitation in the next 30 days.

Contao is an open source content management system. Starting in version 4.0.0 and prior to version 4.13.40 and 5.3.4, users can inject malicious code in filenames when uploading files (back end and front end), which is then executed in tooltips and popups in the back end. Contao versions 4.13.40 and 5.3.4 have a patch for this issue. As a workaround, remove upload fields from frontend forms and disable uploads for untrusted back end users.

Affected products

• Contao Contao: from 4.0.0, before 4.13.40 (fixed in 4.13.40); from 5.0.0, before 5.3.4 (fixed in 5.3.4)

Published 2024-04-09. Last modified 2026-06-17.