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CVE-2025-66301— Grav ihas Broken Access Control which allows an Editor to modify the page's YAML Frontmatter to alter form processing actions

EPSS 26.22% · P96
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I. Basic Information for CVE-2025-66301

Vulnerability Information
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Vulnerability Title
Grav ihas Broken Access Control which allows an Editor to modify the page's YAML Frontmatter to alter form processing actions
Source: NVD (National Vulnerability Database)
Vulnerability Description
Grav is a file-based Web platform. Prior to 1.8.0-beta.27, due to improper authorization checks when modifying critical fields on a POST request to /admin/pages/{page_name}, an editor with only permissions to change basic content on the form is now able to change the functioning of the form through modifying the content of the data[_json][header][form] which is the YAML frontmatter which includes the process section which dictates what happens after a user submits the form which include some important actions that could lead to further vulnerabilities. This vulnerability is fixed in 1.8.0-beta.27.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
授权机制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Grav 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Grav是Grav开源的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 1.8.0-beta.27之前版本存在授权问题漏洞，该漏洞源于授权检查不当，可能导致表单功能被修改。
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

VendorProductAffected VersionsCPESubscribe
getgravgrav < 1.8.0-beta.27 -

II. Public POCs for CVE-2025-66301

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III. Intelligence Information for CVE-2025-66301

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Same Patch Batch · getgrav · 2025-12-01 · 19 CVEs total

CVE-2025-662998.8 HIGHSecurity Sandbox Bypass with SSTI (Server Side Template Injection) in the Grav CMS
CVE-2025-662958.8 HIGHGrav vulnerable to Path traversal / arbitrary YAML write via user creation leading to Acco
CVE-2025-662968.8 HIGHGrav vulnerable to Privilege Escalation in Grav Admin: Missing Username Uniqueness Check A
CVE-2025-663008.5 HIGHGrav is vulnerable to Arbitrary File Read
CVE-2025-663026.8 MEDIUMGrav vulnerable to Path Traversal allowing server files backup
CVE-2025-663076.5 MEDIUMGrav Admin Plugin vulnerable to User Enumeration & Email Disclosure
CVE-2025-663046.2 MEDIUMGrav Exposes Password Hashes Leading to privilege escalation
CVE-2025-663034.9 MEDIUMGrav is vulnerable to a DOS on the admin panel
CVE-2025-663064.3 MEDIUMGrav vulnerable to Information Disclosure via IDOR in Grav Admin Panel
CVE-2025-66305Grav vulnerable to Denial of Service via Improper Input Handling in 'Supported' Parameter
CVE-2025-66294Grav is vulnerable to RCE via SSTI through Twig Sandbox Bypass
CVE-2025-66297Grav vulnerable to Privilege Escalation and Authenticated Remote Code Execution via Twig I
CVE-2025-66311Grav vulnerable to Cross-Site Scripting (XSS) Stored endpoint `/admin/pages/[page]` in Mul
CVE-2025-66309Grav vulnerable to Cross-Site Scripting (XSS) Reflected endpoint /admin/pages/[page], para
CVE-2025-66308Grav Admin Plugin vulnerable to Cross-Site Scripting (XSS) Stored endpoint `/admin/config/
CVE-2025-66298Grav is vulnerable to Server-Side Template Injection (SSTI) via Forms
CVE-2025-66312Grav Admin Plugin vulnerable to Cross-Site Scripting (XSS) Stored endpoint `/admin/account
CVE-2025-66310Grav vulnerable to Cross-Site Scripting (XSS) Stored endpoint `/admin/pages/[page]` parame

IV. Related Vulnerabilities

Same product: grav
Same vendor: getgrav
Same weakness: CWE-285

V. Comments for CVE-2025-66301

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