Werk #13067: Fix path traversal vulnerability

Component Setup
Title Fix path traversal vulnerability
Date Aug 16, 2021
Checkmk Edition Checkmk Raw (CRE)
Checkmk Version 1.6.0p26 2.0.0p10 2.1.0b1
Level Trivial Change
Class Security Fix
Compatibility Compatible - no manual interaction needed

An authenticated user was able to enumerate files ending with ".csv" on the filesystem, accessible to the siteuser.

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