Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-118248— Highcharts Dashboards: editableOptions.propertyPath writes to Object.prototype

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 图表库。在从 1.0.0 到 4.2.2 的版本中，Highcharts Dashboards 的编辑模式在遍历 editableOptions 的 propertyPath 段时，未对与原型（prototype）相关的键进行拒绝处理。攻击者若能够控制 editableOptions，即可通过 或 构造路径，使用户在编辑时将配置值写入 。该属性随后将在整个页面的 JavaScript 环境中可见，其具体影响取决于使用该库的应用程序。此问题已在

CVSS 6.9 · Medium

Affected Version Matrix 2

VendorProduct Version RangeStatus
@highcharts dashboards >= 1.0.0, < 4.2.2 affected
highcharts highcharts < 13.1.0 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-118248

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Highcharts Dashboards: editableOptions.propertyPath writes to Object.prototype
Source: CVE Program / CVE List V5
Vulnerability Description
Highcharts JS is a JavaScript charting library based on SVG. From 1.0.0 until 4.2.2, Highcharts Dashboards edit mode walks editableOptions propertyPath segments without rejecting prototype-related keys. An attacker who controls editableOptions can provide a path through __proto__ or constructor, and a user's edit writes the configured value onto Object.prototype. The property then becomes visible to JavaScript throughout the page, with consequences determined by the consuming application. This issue is fixed in 4.2.2.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:H/VA:H/SC:L/SI:L/SA:L
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1321
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
highcharts highcharts < 13.1.0 -
@highcharts dashboards >= 1.0.0, < 4.2.2 -

II. Public POCs for CVE-2026-118248

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-118248

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-118248 (1)

Vendor Advisories for CVE-2026-118248 (1)

Vendor Pages for CVE-2026-118248 (1)

Same Patch Batch · highcharts · 2026-10-28 · 16 CVEs total

CVE-2026-118245 8.6 HIGH Highcharts Dashboards: `chartConstructor` is an unchecked lookup into the Highcharts names
CVE-2026-118254 8.6 HIGH Highcharts Grid: pagination language options are parsed as HTML
CVE-2026-116797 8.5 HIGH Highcharts Grid Pro: cell-renderer `attributes` map written with raw `setAttribute`
CVE-2026-118242 8.5 HIGH Highcharts Grid: custom icon definition objects written with raw `setAttribute` on `<path>
CVE-2026-118246 8.4 HIGH Highcharts Core: `breadcrumbs.style` keys become SVG event-handler attributes
CVE-2026-118253 8.4 HIGH Highcharts Dashboards: fullscreen labels are parsed as HTML
CVE-2026-118251 8.4 HIGH Highcharts: javascript: URL in credits.href runs script on click
CVE-2026-118252 8.4 HIGH Highcharts Dashboards: sidebar component labels are parsed as HTML
CVE-2026-118255 8.4 HIGH Highcharts Grid: javascript: URL in credits.href runs script on click
CVE-2026-116796 7.2 HIGH Highcharts Core: `javascript:` URL in an `xlink:href` attribute survives text filtering an
CVE-2026-118244 7.2 HIGH Highcharts Core: AST `DOMParser` fallback assigns unsanitized markup to `innerHTML` during
CVE-2026-118250 7.2 HIGH Highcharts: dotted series.keys paths write to Object.prototype
CVE-2026-118249 7.2 HIGH Highcharts: series column construction writes to Object.prototype
CVE-2026-118247 6.9 MEDIUM Highcharts Dashboards / Grid Pro: `DataTable.setCell` and column writers treat `__proto__`
CVE-2026-118243 5.3 MEDIUM Highcharts Dashboards: `__proto__` data table id writes sync listeners to `Object.prototyp

IV. Related Vulnerabilities

Same product: highcharts
Same vendor: highcharts
Same weakness: CWE-1321