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CVE-2021-21365— Cross-Site Scripting in Content Rendering

Quick assessment

Affected
benjaminkott bootstrap_package
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.

Bootstrap是一款使用HTML、CSS和JavaScript开发的开源Web前端框架。 Bootstrap Package 存在跨站脚本漏洞，该漏洞源于对用户提供的数据的无害化处理不足。以下产品及版本受到影响：Bootstrap Package: 6.2.0, 6.2.1, 6.2.2.1, 6.2.3.2, 6.2.4, 6.2.5, 6.2.6, 6.2.7, 6.2.8, 6.2.9, 6.2.10, 6.2.11, 6.2.12, 6.2.13, 6.2.14, 6.2.15, 6.2.16

CVSS 5.4 · Medium EPSS 0.94% · P58
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I. Basic Information for CVE-2021-21365

Vulnerability Information
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Vulnerability Title
Cross-Site Scripting in Content Rendering
Source: CVE Program / CVE List V5
Vulnerability Description
Bootstrap Package is a theme for TYPO3. It has been discovered that rendering content in the website frontend is vulnerable to cross-site scripting. A valid backend user account is needed to exploit this vulnerability. Users of the extension, who have overwritten the affected templates with custom code must manually apply the security fix. Update to version 7.1.2, 8.0.8, 9.1.4, 10.0.10 or 11.0.3 of the Bootstrap Package that fix the problem described. Updated version are available from the TYPO3 extension manager, Packagist and at https://extensions.typo3.org/extension/download/bootstrap_package/.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/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
Bootstrap 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Bootstrap是一款使用HTML、CSS和JavaScript开发的开源Web前端框架。 Bootstrap Package 存在跨站脚本漏洞，该漏洞源于对用户提供的数据的无害化处理不足。以下产品及版本受到影响：Bootstrap Package: 6.2.0, 6.2.1, 6.2.2.1, 6.2.3.2, 6.2.4, 6.2.5, 6.2.6, 6.2.7, 6.2.8, 6.2.9, 6.2.10, 6.2.11, 6.2.12, 6.2.13, 6.2.14, 6.2.15, 6.2.16
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
benjaminkott bootstrap_package >= 7.1.0, < 7.1.2 -

II. Public POCs for CVE-2021-21365

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III. Intelligence Information for CVE-2021-21365

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Patches & Fixes for CVE-2021-21365 (1)

Vendor Advisories for CVE-2021-21365 (2)

IV. Related Vulnerabilities

Same weakness: CWE-79

V. Comments for CVE-2021-21365

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