This vulnerability allows an unauthenticated remote attacker to perform path traversal via the req.params.tmpFile parameter in the REST API of gyoridavid short-video-maker (up to version 1.3.4). The issue resides in the src/server/routers/rest.ts file, enabling attackers to potentially access files outside the intended directory structure. The vulnerability has been publicly disclosed with exploit code released, but the vendor has not provided an official fix or mitigation guidance.

Successful exploitation could allow attackers to read arbitrary files on the server hosting the vulnerable application, potentially exposing sensitive information. The vulnerability does not require privileges or user interaction and has low complexity to exploit. However, there is no indication of privilege escalation, code execution, or impact on confidentiality beyond file access. No confirmed active exploitation has been reported.

No official fix or patch is currently available from the vendor, and the project has not responded to the issue report. Users should monitor the vendor's channels for updates and consider implementing temporary mitigations such as input validation or restricting access to the REST API endpoints until an official patch is released. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.