CVE-2025-43858

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

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.

Category

9.2
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 0.02%
Affected: Bluegrams YoutubeDLSharp
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2025-43858?
CVE-2025-43858 has been scored as a critical severity vulnerability.
How to fix CVE-2025-43858?
To fix CVE-2025-43858, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-43858 being actively exploited in the wild?
It is possible that CVE-2025-43858 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-43858?
CVE-2025-43858 affects Bluegrams YoutubeDLSharp.
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