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CVE-2021-29489— Options structure open to XSS if passed unfiltered

Quick assessment

Affected
highcharts highcharts
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.

Highcharts JS是一款基于SVG的JavaScript图表框架。DOMPurify是一款使用JavaScript编写的，用于HTML、MathML和SVG的DOM（文档对象模型）。 Highcharts JS 存在跨站脚本漏洞，该漏洞源于不可信源的内容可能会在最终用户的浏览器中执行代码。

CVSS 7.6 · High EPSS 0.87% · P56

Possible ATT&CK Techniques 1 AI

T1189 · Drive-by Compromise
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I. Basic Information for CVE-2021-29489

Vulnerability Information
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Vulnerability Title
Options structure open to XSS if passed unfiltered
Source: CVE Program / CVE List V5
Vulnerability Description
Highcharts JS is a JavaScript charting library based on SVG. In Highcharts versions 8 and earlier, the chart options structure was not systematically filtered for XSS vectors. The potential impact was that content from untrusted sources could execute code in the end user's browser. The vulnerability is patched in version 9. As a workaround, implementers who are not able to upgrade may apply DOMPurify recursively to the options structure to filter out malicious markup.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L
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
Highcharts JS 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Highcharts JS是一款基于SVG的JavaScript图表框架。DOMPurify是一款使用JavaScript编写的，用于HTML、MathML和SVG的DOM（文档对象模型）。 Highcharts JS 存在跨站脚本漏洞，该漏洞源于不可信源的内容可能会在最终用户的浏览器中执行代码。
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
highcharts highcharts < 9.0.0 -

II. Public POCs for CVE-2021-29489

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III. Intelligence Information for CVE-2021-29489

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Vendor Advisories for CVE-2021-29489 (2)

IV. Related Vulnerabilities

Same weakness: CWE-79

V. Comments for CVE-2021-29489

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