Contao 4.13.21, a new version of the Contao open source CMS, has been released.

This is a security release! A timely update is strongly recommended!

Vulnerability details

About Contao 4.13 LTS

The first stable version of Contao 4.13 has been released on February 17, 2022, replacing Contao 4.9 as the long term support version. As an LTS version, 4.13 will be provided with bug fixes until February 14, 2025 and security-related updates until February 14, 2026. Contao 5.3 will be the next LTS version of Contao and will be released in February 2024, ensuring a stress-free transition.

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