CVE-2020-37256— Grav - Cross-Site Scripting in Admin Plugin Page Editor
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I. Basic Information for CVE-2020-37256
Vulnerability Information
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Vulnerability Title
Grav - Cross-Site Scripting in Admin Plugin Page Editor
Source: CVE Program / CVE List V5
Vulnerability Description
Grav before 1.6.30 contains a cross-site scripting vulnerability in the Admin plugin page editor default security configuration. Privileged users with page editing capabilities can inject malicious scripts to execute arbitrary code and install malicious plugins for system access.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
Grav 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Grav Grav是Grav组织开源的一个基于文件系统的无数据库内容管理系统。 Grav 1.6.30之前版本存在跨站脚本漏洞，该漏洞源于Admin插件页面编辑器的默认安全配置问题，可能导致具有页面编辑权限的用户注入恶意脚本以执行任意代码并安装恶意插件获取系统访问权限。
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-2020-37256
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Vendor Advisories for CVE-2020-37256 (2)
IV. Related Vulnerabilities
Same product: Grav
- CVE-2026-72833
Grav 1.0.6 through 1.0.11 Privilege Escalation via Scoped AP - CVE-2026-72831
Grav through 2.0.11 Authentication Bypass via Flex Objects - CVE-2026-72832
Grav before 2.0.12 Stored XSS via quoted-attribute bypass - CVE-2026-72830
Grav API Plugin before 1.0.13 RCE via ConfigController scope - CVE-2026-72828
Grav before 1.0.13 API Key Scope Bypass via InvitationsContr
Same vendor: Grav
- CVE-2026-58657
Grav - Stored CSS Injection via Markdown Image resize() Acti - CVE-2026-58654
Grav - Arbitrary File Upload via Avatar Endpoint - CVE-2026-56700
Grav - Multiple Remote Code Execution Vulnerabilities via Un - CVE-2026-56701
Grav - XML External Entity Injection via SVG Upload - CVE-2026-11982
Stored XSS via missing XSS safety check in Admin2 Pages API
V. Comments for CVE-2020-37256
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