CVE-2025-43858

Description

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.

Risk Information

Base Score

9.2

MODERATE

Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:L

EPSS Score

Exploitation Probability

0.172

Associated Vulnerability

Vulnerability	OS Platform
Vulnerabilities CVE-2025-43858 are fixed in Nuget - YoutubeDLSharp 1.1.2	Windows
Vulnerabilities CVE-2025-43858 are fixed in Nuget - YoutubeDLSharp for Linux 1.1.2	Linux

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234