CVE-2025-66310— Grav vulnerable to Cross-Site Scripting (XSS) Stored endpoint `/admin/pages/[page]` parameter `data[header][template]` in Advanced Tab
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 1.11.0-beta.1之前版本存在跨站脚本漏洞，该漏洞源于存储型跨站脚本，可能导致恶意脚本执行。
Possible ATT&CK Techniques 1 AI
T1189 · Drive-by Compromise
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I. Basic Information for CVE-2025-66310
Vulnerability Information
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Vulnerability Title
Grav vulnerable to Cross-Site Scripting (XSS) Stored endpoint `/admin/pages/[page]` parameter `data[header][template]` in Advanced Tab
Source: CVE Program / CVE List V5
Vulnerability Description
This admin plugin for Grav is an HTML user interface that provides a convenient way to configure Grav and easily create and modify pages. Prior to 1.11.0-beta.1, a Stored Cross-Site Scripting (XSS) vulnerability was identified in the /admin/pages/[page] endpoint of the Grav application. This vulnerability allows attackers to inject malicious scripts into the data[header][template] parameter. The script is saved within the page's frontmatter and executed automatically whenever the affected content is rendered in the administrative interface or frontend view. This vulnerability is fixed in 1.11.0-beta.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:L/VI:L/VA:N/SC:H/SI:H/SA:H
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 1.11.0-beta.1之前版本存在跨站脚本漏洞，该漏洞源于存储型跨站脚本，可能导致恶意脚本执行。
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-2025-66310
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · getgrav · 2025-12-01 · 19 CVEs total
| CVE-2025-66295 | 8.8 HIGH | Grav vulnerable to Path traversal / arbitrary YAML write via user creation leading to Acco |
| CVE-2025-66296 | 8.8 HIGH | Grav vulnerable to Privilege Escalation in Grav Admin: Missing Username Uniqueness Check A |
| CVE-2025-66299 | 8.8 HIGH | Security Sandbox Bypass with SSTI (Server Side Template Injection) in the Grav CMS |
| CVE-2025-66300 | 8.5 HIGH | Grav is vulnerable to Arbitrary File Read |
| CVE-2025-66302 | 6.8 MEDIUM | Grav vulnerable to Path Traversal allowing server files backup |
| CVE-2025-66307 | 6.5 MEDIUM | Grav Admin Plugin vulnerable to User Enumeration & Email Disclosure |
| CVE-2025-66304 | 6.2 MEDIUM | Grav Exposes Password Hashes Leading to privilege escalation |
| CVE-2025-66303 | 4.9 MEDIUM | Grav is vulnerable to a DOS on the admin panel |
| CVE-2025-66306 | 4.3 MEDIUM | Grav vulnerable to Information Disclosure via IDOR in Grav Admin Panel |
| CVE-2025-66312 | Grav Admin Plugin vulnerable to Cross-Site Scripting (XSS) Stored endpoint `/admin/account | |
| CVE-2025-66311 | Grav vulnerable to Cross-Site Scripting (XSS) Stored endpoint `/admin/pages/[page]` in Mul | |
| CVE-2025-66309 | Grav vulnerable to Cross-Site Scripting (XSS) Reflected endpoint /admin/pages/[page], para | |
| CVE-2025-66308 | Grav Admin Plugin vulnerable to Cross-Site Scripting (XSS) Stored endpoint `/admin/config/ | |
| CVE-2025-66305 | Grav vulnerable to Denial of Service via Improper Input Handling in 'Supported' Parameter | |
| CVE-2025-66301 | Grav ihas Broken Access Control which allows an Editor to modify the page's YAML Frontmatt | |
| CVE-2025-66298 | Grav is vulnerable to Server-Side Template Injection (SSTI) via Forms | |
| CVE-2025-66297 | Grav vulnerable to Privilege Escalation and Authenticated Remote Code Execution via Twig I | |
| CVE-2025-66294 | Grav is vulnerable to RCE via SSTI through Twig Sandbox Bypass |
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CVE-2026-100671
Grav before 2.0.25 Session Cookie Theft via Twig Sandbox -
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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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Grav CMS 2.0.14 through 2.0.24 Privilege Escalation via Blue -
CVE-2026-100669
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Same weakness: CWE-79
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V. Comments for CVE-2025-66310
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