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CVE-2024-28116— Server-Side Template Injection (SSTI) with Grav CMS security sandbox bypass

Quick assessment

Affected
getgrav grav
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.

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 1.7.45 版本之前存在安全漏洞，该漏洞源于容易受到服务器端模板注入 (SSTI) 的攻击。

CVSS 8.8 · High EPSS 5.76% · P93
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I. Basic Information for CVE-2024-28116

Vulnerability Information
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Vulnerability Title
Server-Side Template Injection (SSTI) with Grav CMS security sandbox bypass
Source: CVE Program / CVE List V5
Vulnerability Description
Grav is an open-source, flat-file content management system. Grav CMS prior to version 1.7.45 is vulnerable to a Server-Side Template Injection (SSTI), which allows any authenticated user (editor permissions are sufficient) to execute arbitrary code on the remote server bypassing the existing security sandbox. Version 1.7.45 contains a patch for this issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/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 安全漏洞
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 1.7.45 版本之前存在安全漏洞，该漏洞源于容易受到服务器端模板注入 (SSTI) 的攻击。
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
getgrav grav < 1.7.45 -

II. Public POCs for CVE-2024-28116

# POC Description Source Link Shenlong Link
1 Proof of Concept script to exploit the authenticated SSTI+RCE in Grav CMS (CVE-2024-28116) https://github.com/akabe1/Graver POC Details
2 Exploit against Grav CMS (versions below 1.7.45) that allows Remote Code Execution for an authenticated user - CVE-2024-28116 https://github.com/gunzf0x/Grav-CMS-RCE-Authenticated POC Details
3 is a PoC Python script that exploits an authenticated Server-Side Template Injection (SSTI) vulnerability in Grav CMS versions <= 1.7.44 (CVE-2024-28116) https://github.com/geniuszlyy/GenGravSSTIExploit POC Details
4 is a PoC Python script that exploits an authenticated Server-Side Template Injection (SSTI) vulnerability in Grav CMS versions <= 1.7.44 (CVE-2024-28116) https://github.com/geniuszly/GenGravSSTIExploit POC Details
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Qwen3.6-35B-A3B · 7335 chars
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III. Intelligence Information for CVE-2024-28116

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Patches & Fixes for CVE-2024-28116 (1)

Vendor Advisories for CVE-2024-28116 (1)

Same Patch Batch · getgrav · 2024-03-21 · 5 CVEs total

CVE-2024-28119 8.8 HIGH Grav vulnerable to Server Side Template Injection (SSTI) via Twig escape handler
CVE-2024-28118 8.8 HIGH Grav vulnerable to Server Side Template Injection (SSTI)
CVE-2024-28117 8.8 HIGH Grav vulnerable to Server Side Template Injection (SSTI)
CVE-2024-27921 8.8 HIGH Grav File Upload Path Traversal vulnerability

IV. Related Vulnerabilities

Same product: grav
Same vendor: getgrav
Same weakness: CWE-94

V. Comments for CVE-2024-28116

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