CVE-2023-34251— Grav Server Side Template Injection vulnerability
Quick assessment
Affected
getgrav grav
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Grav是一套可扩展的用于个人博客、小型内容发布平台和单页产品展示的CMS（内容管理系统）。 Grav 1.7.42之前版本存在代码注入漏洞，该漏洞源于存在服务器端模板注入 (SSTI)漏洞，允许攻击者通过在管理员屏幕上嵌入恶意PHP代码来实现远程代码执行。
Possible ATT&CK Techniques 3 AI
T1133 · External Remote Services T1059 · Command and Scripting Interpreter T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2023-34251
Vulnerability Information
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Vulnerability Title
Grav Server Side Template Injection vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Grav is a flat-file content management system. Versions prior to 1.7.42 are vulnerable to server side template injection. Remote code execution is possible by embedding malicious PHP code on the administrator screen by a user with page editing privileges. Version 1.7.42 contains a fix for this issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Grav 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Grav是一套可扩展的用于个人博客、小型内容发布平台和单页产品展示的CMS（内容管理系统）。 Grav 1.7.42之前版本存在代码注入漏洞，该漏洞源于存在服务器端模板注入 (SSTI)漏洞，允许攻击者通过在管理员屏幕上嵌入恶意PHP代码来实现远程代码执行。
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
II. Public POCs for CVE-2023-34251
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Patches & Fixes for CVE-2023-34251 (1)
Vendor Advisories for CVE-2023-34251 (1)
-
https://github.com/getgrav/grav/security/advisories/GHSA-f9jf-4cp4-4fq5 x_refsource_CONFIRM
Other References for CVE-2023-34251 (1)
Same Patch Batch · getgrav · 2023-06-14 · 5 CVEs total
| CVE-2023-34448 | 8.8 HIGH | Grav Server-side Template Injection (SSTI) via Twig Default Filters |
| CVE-2023-34253 | 8.8 HIGH | Grav vulnerable to Server-side Template Injection (SSTI) via Denylist Bypass |
| CVE-2023-34252 | 8.8 HIGH | Grav Server-side Template Injection via Insufficient Validation in filterFilter |
| CVE-2023-34452 | 5.4 MEDIUM | Grav vulnerable to Self Cross Site Scripting in /forgot_password |
IV. Related Vulnerabilities
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CVE-2026-100671
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Grav CMS 2.0.14 through 2.0.24 Privilege Escalation via Blue -
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Grav before 2.0.25 Sensitive File Disclosure via Case-Variat -
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CVE-2026-100667
grav-plugin-login 3.8.7 through 3.9.6 Two-Factor Authenticat
Same vendor: getgrav
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CVE-2026-100673
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CVE-2026-100672
grav-plugin-comments before 1.2.11 Unauthenticated Informati -
CVE-2026-100671
Grav before 2.0.25 Session Cookie Theft via Twig Sandbox -
CVE-2026-100670
Grav CMS 2.0.14 through 2.0.24 Privilege Escalation via Blue -
CVE-2026-100669
Grav before 2.0.25 Sensitive File Disclosure via Case-Variat
Same weakness: CWE-94
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Security vulnerabilities have been found in IBM Verify Ident -
CVE-2026-107700
dot-access 0.0.3 through 1.0.0 Code Injection via get() Path
V. Comments for CVE-2023-34251
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