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

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-49492— Markdown Preview Enhanced OS Command Injection in External File and Link Opening

Quick assessment

Affected
shd101wyy Markdown Preview Enhanced
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.

Markdown Preview Enhanced是Yiyi Wang个人开发者的一个超级强大标记扩展。 Markdown Preview Enhanced 0.8.28之前版本存在操作系统命令注入漏洞，该漏洞源于通过shell打开外部文件和链接且未验证不受信任的输入，可能导致命令注入。

CVSS 8.8 · High EPSS 0.47% · P39

Possible ATT&CK Techniques 1 AI

T1210 · Exploitation of Remote Services

Affected Version Matrix 1

VendorProduct Version RangeStatus
shd101wyy Markdown Preview Enhanced < 0.8.28 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-49492

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
Markdown Preview Enhanced OS Command Injection in External File and Link Opening
Source: CVE Program / CVE List V5
Vulnerability Description
Markdown Preview Enhanced before 0.8.28 opens external files and links from the preview through a shell and does not validate untrusted inputs taken from the markdown document - the diagram filename attribute, imported file paths, and the latex_engine code-chunk attribute. On Windows, a crafted markdown document can inject operating system commands that execute when the document is previewed. Fixed in 0.8.28 by passing these inputs as literal arguments instead of through a shell and validating them before use.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Markdown Preview Enhanced 操作系统命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Markdown Preview Enhanced是Yiyi Wang个人开发者的一个超级强大标记扩展。 Markdown Preview Enhanced 0.8.28之前版本存在操作系统命令注入漏洞，该漏洞源于通过shell打开外部文件和链接且未验证不受信任的输入，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)

Affected Products

Vendor Product Affected Versions CPE Subscribe
shd101wyy Markdown Preview Enhanced 0 ~ 0.8.28 -

II. Public POCs for CVE-2026-49492

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 6232 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-2026-49492

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-49492 (1)

Vendor Pages for CVE-2026-49492 (1)

Same Patch Batch · shd101wyy · 2026-06-05 · 4 CVEs total

CVE-2026-49493 8.8 HIGH Markdown Preview Enhanced Arbitrary Code Execution via Bitfield interpretJS()
CVE-2026-50733 8.8 HIGH Markdown Preview Enhanced Arbitrary Code Execution via WaveDrom eval()
CVE-2026-11422 7.1 HIGH Markdown Preview Enhanced 0.8.x Code Injection via WaveDrom Rendering

IV. Related Vulnerabilities

Same product: Markdown Preview Enhanced
Same vendor: shd101wyy
Same weakness: CWE-78

V. Comments for CVE-2026-49492

No comments yet

Leave a comment