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CVE-2021-3904— Cross-site Scripting (XSS) - Stored in getgrav/grav

Quick assessment

Affected
getgrav 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 存在跨站脚本漏洞，该漏洞源于在网页生成期间，grav 容易受到不正确的输入中和（“跨站点脚本”）的影响。

AI Predicted 6.1 Difficulty: Moderate EPSS 0.59% · P46

Possible ATT&CK Techniques 1 AI

T1189 · Drive-by Compromise
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I. Basic Information for CVE-2021-3904

Vulnerability Information
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Vulnerability Title
Cross-site Scripting (XSS) - Stored in getgrav/grav
Source: CVE Program / CVE List V5
Vulnerability Description
grav is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Source: CVE Program / CVE List V5
CVSS Information
N/A
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 存在跨站脚本漏洞，该漏洞源于在网页生成期间，grav 容易受到不正确的输入中和（“跨站点脚本”）的影响。
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 getgrav/grav unspecified ~ 1.7.24 -

II. Public POCs for CVE-2021-3904

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III. Intelligence Information for CVE-2021-3904

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Patches & Fixes for CVE-2021-3904 (1)

Vendor Advisories for CVE-2021-3904 (1)

IV. Related Vulnerabilities

Same product: getgrav/grav
Same vendor: getgrav
Same weakness: CWE-79

V. Comments for CVE-2021-3904

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