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CVE-2020-26227— Cross-Site Scripting in Fluid view helpers

Quick assessment

Affected
TYPO3 TYPO3.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.

TYPO3是瑞士TYPO3（Typo3）协会的一套免费开源的内容管理系统(框架)(CMS/CMF)。 TYPO3 存在跨站脚本漏洞，该漏洞源于在处理通过Fluid View助手传递的输入时，系统扩展Fluid（typo3 / cms-fluid）中用户提供的数据处理不充分。远程攻击者可以诱骗受害者遵循特制链接，并在易受攻击的网站的上下文中在用户的浏览器中执行任意HTML和脚本代码。成功利用此漏洞可能使远程攻击者能够窃取潜在的敏感信息，更改网页的外观，进行网络钓鱼和通过下载进行攻击。

CVSS 6.1 · Medium EPSS 0.72% · P51
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I. Basic Information for CVE-2020-26227

Vulnerability Information
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Vulnerability Title
Cross-Site Scripting in Fluid view helpers
Source: CVE Program / CVE List V5
Vulnerability Description
TYPO3 is an open source PHP based web content management system. In TYPO3 before versions 9.5.23 and 10.4.10 the system extension Fluid (typo3/cms-fluid) of the TYPO3 core is vulnerable to cross-site scripting passing user-controlled data as argument to Fluid view helpers. Update to TYPO3 versions 9.5.23 or 10.4.10 that fix the problem described.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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
TYPO3 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TYPO3是瑞士TYPO3（Typo3）协会的一套免费开源的内容管理系统(框架)(CMS/CMF)。 TYPO3 存在跨站脚本漏洞，该漏洞源于在处理通过Fluid View助手传递的输入时，系统扩展Fluid（typo3 / cms-fluid）中用户提供的数据处理不充分。远程攻击者可以诱骗受害者遵循特制链接，并在易受攻击的网站的上下文中在用户的浏览器中执行任意HTML和脚本代码。成功利用此漏洞可能使远程攻击者能够窃取潜在的敏感信息，更改网页的外观，进行网络钓鱼和通过下载进行攻击。
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
TYPO3 TYPO3.CMS >= 9.0.0, < 9.5.23 -

II. Public POCs for CVE-2020-26227

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III. Intelligence Information for CVE-2020-26227

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Vendor Advisories for CVE-2020-26227 (1)

Other References for CVE-2020-26227 (1)

Same Patch Batch · TYPO3 · 2020-11-23 · 3 CVEs total

CVE-2020-26228 8.1 HIGH Cleartext storage of session identifier
CVE-2020-26229 3.7 LOW XML External Entity in Dashboard Widget

IV. Related Vulnerabilities

Same product: TYPO3.CMS
Same vendor: TYPO3
Same weakness: CWE-79

V. Comments for CVE-2020-26227

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