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CVE-2021-42057

Quick assessment

Affected
n/a n/a
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.

obsidian-dataview是一个应用软件。一个复杂的查询语言实现黑曜石笔记记录工具。 Obsidian Dataview 0.4.12-hotfix1之前版本存在安全漏洞，该漏洞源于软件对于eval函数缺少有效的限制与过滤，导致攻击者可以进行eval注入，软件执行用户输入的evalInContext函数。攻击者可利用该漏洞编写恶意Markdown文件，一旦打开该文件，该文件将执行任意代码。

AI Predicted 9.8 Difficulty: Easy EPSS 1.24% · P68

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-42057

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Obsidian Dataview through 0.4.12-hotfix1 allows eval injection. The evalInContext function in executes user input, which allows an attacker to craft malicious Markdown files that will execute arbitrary code once opened. NOTE: 0.4.13 provides a mitigation for some use cases.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
obsidian-dataview 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
obsidian-dataview是一个应用软件。一个复杂的查询语言实现黑曜石笔记记录工具。 Obsidian Dataview 0.4.12-hotfix1之前版本存在安全漏洞，该漏洞源于软件对于eval函数缺少有效的限制与过滤，导致攻击者可以进行eval注入，软件执行用户输入的evalInContext函数。攻击者可利用该漏洞编写恶意Markdown文件，一旦打开该文件，该文件将执行任意代码。
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
- n/a n/a -

II. Public POCs for CVE-2021-42057

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Reproduced successfully in a real sandbox · Below is the actual recording of building the environment and exploiting the vulnerability.
Success marker: VULNERABLE: eval injection — malicious markdown inline query executed arbitrary code, proof token PROOF_1087dc25322cc431 exfiltrated
Reproduction recording is a Pro+ exclusive
Watch the full sandbox build + live exploit recording for this CVE. Limited-time ¥499/mo.
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claude_code · 4741 chars
GitHub 复现环境（可 clone 直接跑）
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
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POC zip download
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III. Intelligence Information for CVE-2021-42057

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Other References for CVE-2021-42057 (1)

Same Patch Batch · n/a · 2021-11-04 · 12 CVEs total

CVE-2021-43400 BlueZ 资源管理错误漏洞
CVE-2020-25367 D-Link DIR-823G 命令注入漏洞
CVE-2020-25366 D-Link DIR-823G 安全漏洞
CVE-2020-25368 D-Link DIR-823G 命令注入漏洞
CVE-2021-42624 Miniftpd 安全漏洞
CVE-2021-43281 MyBB 代码注入漏洞
CVE-2021-43293 Sonatype Nexus Repository 代码问题漏洞
CVE-2021-43389 Linux kernel 缓冲区错误漏洞
CVE-2020-21139 EC Cloud E-Commerce System 跨站请求伪造漏洞
CVE-2021-43396 GNU C Library 安全漏洞
CVE-2021-43398 Crypto++ 安全漏洞

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

V. Comments for CVE-2021-42057

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