Contao Vulnerable to Cross-Site Scripting (XSS) through SVG uploads
### Impact Users can upload SVG files with malicious code, which is then executed in the back end and/or front end. ### Patches Update to Contao 4.13.54, 5.3.30 or 5.5.6. ### Workarounds Remove `svg,svgz` from the allowed upload file types in the system settings and from `contao.editable_files` in the `config.yaml`. ### References https://contao.org/en/security-advisories/cross-site-scripting-through-svg-uploads ### For more information If you have any questions or comments about this advisory, open an issue in [contao/contao](https://github.com/contao/contao/issues/new/choose).
beschreibt (1)
Zugehörige CVEs.
| ID | Schweregrad | ausnutzbar | ||
|---|---|---|---|---|
| CVE-2025-29790US | medium5.4 | — | ||
Contao is an Open Source CMS. Users can upload SVG files with malicious code, which is then executed in the back end and/or front end. This vulnerability is fixed in Contao 4.13.54… | ||||
Referenzen
Externe Belege — Patches, Meldungen, Analysen.
Advisories wie diese benennen die exponierten Produkte, die Angreifer auf Ihrer Angriffsfläche ins Visier nehmen. Sehen Sie mit einem kostenlosen Passiv-Scan, was exponiert ist.
Kostenloser Scan