Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2025-43858— YoutubeDLSharp allows command injection on windows system due to non sanitized arguments

Quick assessment

Affected
Bluegrams YoutubeDLSharp
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Bluegrams YoutubeDLSharp是Bluegrams公司的一个youtube-dl和yt-dlp的简单.NET包装库。 Bluegrams YoutubeDLSharp 1.0.0-beta4版本至1.1.2之前版本存在安全漏洞，该漏洞源于参数转换不安全，可能导致命令注入。

CVSS 9.2 · Critical EPSS 0.25% · P17

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2025-43858

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
YoutubeDLSharp allows command injection on windows system due to non sanitized arguments
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
在命令中使用的特殊元素转义处理不恰当(命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Bluegrams YoutubeDLSharp 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Bluegrams YoutubeDLSharp是Bluegrams公司的一个youtube-dl和yt-dlp的简单.NET包装库。 Bluegrams YoutubeDLSharp 1.0.0-beta4版本至1.1.2之前版本存在安全漏洞，该漏洞源于参数转换不安全，可能导致命令注入。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Shenlong Deep Dive — AI Deep Analysis

10-question deep dive: root cause, exploitation, mitigation, urgency. Read summary free, full version requires login.

Read summary Full analysis (login)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Bluegrams YoutubeDLSharp >= 1.0.0-beta4, < 1.1.2 -

II. Public POCs for CVE-2025-43858

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 8433 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2025-43858

请登录查看更多情报信息。

Vendor Advisories for CVE-2025-43858 (1)

IV. Related Vulnerabilities

Same weakness: CWE-77

V. Comments for CVE-2025-43858

No comments yet

Leave a comment