CVE-2025-63083— Joomla! Core - [20260102] - XSS vector in the pagebreak plugin
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存在跨站脚本漏洞，该漏洞源于输出转义不足，可能导致pagebreak插件存在跨站脚本攻击向量。
Possible ATT&CK Techniques 2 AI
T1059 · Command and Scripting Interpreter T1189 · Drive-by Compromise
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I. Basic Information for CVE-2025-63083
Vulnerability Information
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Vulnerability Title
Joomla! Core - [20260102] - XSS vector in the pagebreak plugin
Source: CVE Program / CVE List V5
Vulnerability Description
Lack of output escaping leads to a XSS vector in the pagebreak plugin.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:U
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 跨站脚本漏洞
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存在跨站脚本漏洞，该漏洞源于输出转义不足，可能导致pagebreak插件存在跨站脚本攻击向量。
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 | 3.9.0-5.4.1 | - |
|
II. Public POCs for CVE-2025-63083
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2025-63083 (1)
IV. Related Vulnerabilities
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CVE-2026-71573
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CVE-2026-72531
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CVE-2026-73336
Joomla! Core - [20260806] - XSS through schema.org outputs i -
CVE-2026-73372
Joomla! Core - [20260809] - Improper ACL checks when injecti -
CVE-2026-71572
Joomla! Core - [20260801] - Response header injection in dow
Same vendor: Joomla! Project
-
CVE-2026-71573
Joomla! Core - [20260802] - Improper CORS origin validation -
CVE-2026-72531
Joomla! Core - [20260804] - Improper ACL checks for custom f -
CVE-2026-73336
Joomla! Core - [20260806] - XSS through schema.org outputs i -
CVE-2026-73372
Joomla! Core - [20260809] - Improper ACL checks when injecti -
CVE-2026-71572
Joomla! Core - [20260801] - Response header injection in dow
Same weakness: CWE-79
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CVE-2026-74793
justhtml before 3.11.0 XSS via selectedcontent projection -
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V. Comments for CVE-2025-63083
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