My question is similar to Using \clearpage breaks \hyperref bookmarks; I have the same problem using KomaScript: I use \addtokomafont{section}{\clearpage}
to make sections start on a new page.
When using the hyperref package, the section bookmarks point to the end of the previous section instead of the start of the new one.
\documentclass{scrartcl}
\usepackage{hyperref}
\hypersetup{bookmarksnumbered=true}
\usepackage{bookmark}
\addtokomafont{section}{\clearpage}
\begin{document}
\section{First}
Some text
\section{Second}
More Text
\end{document}
\phantomsection
would help.\addtokomafont{section}{\clearpage\phantomsection}