Gogs 0.11.66 allows remote code execution because it does not properly validate session IDs, as demonstrated by a ".." session-file forgery in the file session provider in file.go. This is related to session ID handling in the go-macaron/session code for Macaron.
id: CVE-2018-18925
info:
name: Gogs (Go Git Service) 0.11.66 - Remote Code Execution
author: pr
...