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CVE-2021-23131— [20210305] - Core - Input validation within the template manager

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是美国Open Source Matters团队的一套使用PHP和MySQL开发的开源、跨平台的内容管理系统(CMS)。 Joomla Core 存在安全漏洞，该漏洞源于模板管理器中缺少输入验证。以下产品及版本受到影响：Joomla! 3.2.0 through 3.9.24.

AI Predicted 8.8 Difficulty: Easy EPSS 1.31% · P68

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-23131

Vulnerability Information
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Vulnerability Title
[20210305] - Core - Input validation within the template manager
Source: CVE Program / CVE List V5
Vulnerability Description
An issue was discovered in Joomla! 3.2.0 through 3.9.24. Missing input validation within the template manager.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Joomla 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Joomla是美国Open Source Matters团队的一套使用PHP和MySQL开发的开源、跨平台的内容管理系统(CMS)。 Joomla Core 存在安全漏洞，该漏洞源于模板管理器中缺少输入验证。以下产品及版本受到影响：Joomla! 3.2.0 through 3.9.24.
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 3.2.0-3.9.24 -

II. Public POCs for CVE-2021-23131

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2021-23131

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Other References for CVE-2021-23131 (1)

Same Patch Batch · Joomla! Project · 2021-03-04 · 10 CVEs total

CVE-2021-23129 [20210303] - Core - XSS within alert messages showed to users
CVE-2021-23130 [20210304] - Core - XSS within the feed parser library
CVE-2021-23132 [20210306] - Core - com_media allowed paths that are not intended for image uploads
CVE-2021-26027 [20210307] - Core - ACL violation within com_content frontend editing
CVE-2021-26028 [20210308] - Core - Path Traversal within joomla/archive zip class
CVE-2021-26029 [20210309] - Core - Inadequate filtering of form contents could allow to overwrite the aut
CVE-2021-23126 [20210301] - Core - Insecure randomness within 2FA secret generation
CVE-2021-23127 [20210301] - Core - Insecure randomness within 2FA secret generation
CVE-2021-23128 [20210302] - Core - Potential Insecure FOFEncryptRandval

IV. Related Vulnerabilities

Same product: Joomla! CMS
Same vendor: Joomla! Project

V. Comments for CVE-2021-23131

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