dgtlmoon changedetection.io Screenshot flask_app.py static_content path traversal

A vulnerability was found in dgtlmoon changedetection.io up to 0.60.7. This affects the function static_content of the file changedetectionio/flask_app.py of the component Screenshot Handler. Performing a manipulation of the argument filename results in path traversal. It is possible to initiate the attack remotely. The attack is considered to have high complexity. The exploitability is reported as difficult. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.