CVE-2024-31450

Name of the Vulnerable Software and Affected Versions Owncast versions prior to 0.1.3

Description Owncast is an open source, self-hosted, decentralized, single user live video streaming and chat server. The Owncast application exposes an administrator API at the URL "/api/admin". The "emoji/delete" endpoint of said API allows administrators to delete custom emojis, which are saved on disk. The name parameter is taken from the JSON request and directly appended to the filepath that points to the emoji to delete. By using path traversal sequences (../), attackers with administrative privileges can exploit this endpoint to delete arbitrary files on the system, outside of the emoji directory.

Recommendations For versions prior to 0.1.3, update to version 0.1.3 to resolve the issue. As a temporary workaround, consider restricting access to the "/api/admin" endpoint, specifically the "emoji/delete" endpoint, to minimize the risk of exploitation. Avoid using the name parameter in the affected API endpoint until the issue is resolved.