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CVE-2020-37237— Composr CMS 10.0.34 Persistent Cross-Site Scripting via banners

Quick assessment

Affected
Compo Composr 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.

Ocproducts Composr CMS是英国Ocproducts公司的一套使用PHP语言编写的开源内容管理系统（CMS）。 Ocproducts Composr CMS 10.0.34版本存在跨站脚本漏洞，该漏洞源于横幅管理界面存在持久性跨站脚本，可能导致经过身份验证的管理员注入恶意脚本，具有管理员凭据的攻击者在添加横幅功能的描述字段中注入XSS有效载荷，在所有网站访问者访问首页时执行。

CVSS 6.4 · Medium EPSS 0.24% · P15

Affected Version Matrix 1

VendorProduct Version RangeStatus
Compo Composr CMS 10.0.34 affected
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I. Basic Information for CVE-2020-37237

Vulnerability Information
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Vulnerability Title
Composr CMS 10.0.34 Persistent Cross-Site Scripting via banners
Source: CVE Program / CVE List V5
Vulnerability Description
Composr CMS 10.0.34 contains a persistent cross-site scripting vulnerability that allows authenticated administrators to inject malicious scripts through the banner management interface. Attackers with admin credentials can inject XSS payloads in the Description field of the Add banner functionality, which execute for all website visitors when they access the home page.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A: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
Ocproducts Composr CMS 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Ocproducts Composr CMS是英国Ocproducts公司的一套使用PHP语言编写的开源内容管理系统（CMS）。 Ocproducts Composr CMS 10.0.34版本存在跨站脚本漏洞，该漏洞源于横幅管理界面存在持久性跨站脚本，可能导致经过身份验证的管理员注入恶意脚本，具有管理员凭据的攻击者在添加横幅功能的描述字段中注入XSS有效载荷，在所有网站访问者访问首页时执行。
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

Vendor Product Affected Versions CPE Subscribe
Compo Composr CMS 10.0.34 -

II. Public POCs for CVE-2020-37237

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III. Intelligence Information for CVE-2020-37237

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Vendor Advisories for CVE-2020-37237 (1)

Exploits & Public PoCs for CVE-2020-37237 (1)

Vendor Pages for CVE-2020-37237 (2)

IV. Related Vulnerabilities

Same weakness: CWE-79

V. Comments for CVE-2020-37237

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