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CVE-2021-32669— Cross-Site Scripting in Backend Grid View

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，该漏洞源于当后端布局的设置没有正确编码时，相应的网格视图很容易受到持久的跨站点脚本的影响。以下版本和产品受到影响:版本9.0.0到9.5.28、10.0.0到10.4.17、11.0.0到11.3.0存在跨站点脚本漏洞。

CVSS 6.4 · Medium EPSS 0.60% · P48
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I. Basic Information for CVE-2021-32669

Vulnerability Information
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Vulnerability Title
Cross-Site Scripting in Backend Grid View
Source: CVE Program / CVE List V5
Vulnerability Description
TYPO3 is an open source PHP based web content management system. Versions 9.0.0 through 9.5.28, 10.0.0 through 10.4.17, and 11.0.0 through 11.3.0 have a cross-site scripting vulnerability. When settings for _backend layouts_ are not properly encoded, the corresponding grid view is vulnerable to persistent cross-site scripting. A valid backend user account is needed to exploit this vulnerability. TYPO3 versions 9.5.29, 10.4.18, 11.3.1 contain a patch for this vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/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，该漏洞源于当后端布局的设置没有正确编码时，相应的网格视图很容易受到持久的跨站点脚本的影响。以下版本和产品受到影响:版本9.0.0到9.5.28、10.0.0到10.4.17、11.0.0到11.3.0存在跨站点脚本漏洞。
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, < 9.5.29 -

II. Public POCs for CVE-2021-32669

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III. Intelligence Information for CVE-2021-32669

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Vendor Advisories for CVE-2021-32669 (1)

Other References for CVE-2021-32669 (1)

Same Patch Batch · TYPO3 · 2021-07-20 · 4 CVEs total

CVE-2021-32667 6.4 MEDIUM Cross-Site Scripting in Page Preview
CVE-2021-32668 6.4 MEDIUM Cross-Site Scripting in Query Generator & Query View
CVE-2021-32767 5.3 MEDIUM Information Disclosure in User Authentication

IV. Related Vulnerabilities

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

V. Comments for CVE-2021-32669

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