CVE-2025-29790: Contao Vulnerable to Cross-Site Scripting (XSS) through SVG uploads

March 18, 2025 (updated October 31, 2025)

Users can upload SVG files with malicious code, which is then executed in the back end and/or front end.

References

contao.org/en/security-advisories/cross-site-scripting-through-svg-uploads
github.com/advisories/GHSA-vqqr-fgmh-f626
github.com/contao/contao
github.com/contao/contao/security/advisories/GHSA-vqqr-fgmh-f626
nvd.nist.gov/vuln/detail/CVE-2025-29790

Code Behaviors & Features

Detect and mitigate CVE-2025-29790 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Dependency Scanning using SBOM also detects vulnerabilities from proprietary advisories that this site does not include. Learn more about Dependency Scanning using SBOM →