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CVE-2025-43858

YoutubeDLSharp allows command injection on windows system due to non sanitized arguments

CVSS 9.2 CRITICALEPSS 0.2%CWE-77CWE-78
Vexday Risk Score
28Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 9.2EPSS 0.2%KEV nãoPoC Nuclei Metasploit Patch
Lifecycle
24 Apr 2025Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
YoutubeDLSharp is a wrapper for the command-line video downloaders youtube-dl and yt-dlp. In versions starting from 1.0.0-beta4 and prior to 1.1.2, an unsafe conversion of arguments allows the injection of a malicious commands when starting `yt-dlp` from a commands prompt running on Windows OS with the `UseWindowsEncodingWorkaround` value defined to true (default behavior). If a user is using built-in methods from the YoutubeDL.cs file, the value is true by default and a user cannot disable it from these methods. This issue has been patched in version 1.1.2.
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:L