CVE-2025-54476— Joomla! Core - [20250901] Inadequate content filtering within the checkAttribute filter code
Quick assessment
Affected
Joomla! Project Joomla! CMS
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.
Joomla! CMS是Joomla!开源的一个内容管理系统。 Joomla! CMS输入过滤框架存在安全漏洞，该漏洞源于checkAttribute方法输入处理不当，可能导致跨站脚本攻击。
Possible ATT&CK Techniques 2 AI
T1189 · Drive-by Compromise T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-54476
Vulnerability Information
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Vulnerability Title
Joomla! Core - [20250901] Inadequate content filtering within the checkAttribute filter code
Source: CVE Program / CVE List V5
Vulnerability Description
Improper handling of input could lead to an XSS vector in the checkAttribute method of the input filter framework class.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA: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
Joomla! CMS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Joomla! CMS是Joomla!开源的一个内容管理系统。 Joomla! CMS输入过滤框架存在安全漏洞，该漏洞源于checkAttribute方法输入处理不当，可能导致跨站脚本攻击。
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 |
|---|---|---|---|---|
| Joomla! Project | Joomla! CMS | 3.0.0-3.10.20 | - |
|
II. Public POCs for CVE-2025-54476
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2025-54476 (1)
IV. Related Vulnerabilities
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V. Comments for CVE-2025-54476
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