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CVE-2026-116797— Highcharts Grid Pro: cell-renderer `attributes` map written with raw `setAttribute`

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 是一个基于 SVG 的 JavaScript 图表库。在 2.0.0 至 3.2.0 版本期间，Highcharts Grid Pro 的输入渲染器通过原始 调用，将 和 映射复制到输入框或选择元素上。若攻击者能够控制列配置，便可为每一行渲染出的元素，或在单元格进入编辑模式时创建的控制元素，添加事件处理器属性。当用户将鼠标悬停或聚焦于输入框，或开始编辑时，恶意脚本将在宿主页面所属的源上下文中执行。该问题已在 Grid Pro 3.2.0 版本中修复。

CVSS 8.5 · High

Possible ATT&CK Techniques 2 AI

T1059.007 · JavaScript T1193

Affected Version Matrix 3

VendorProduct Version RangeStatus
@highcharts dashboards >= 3.6.0, < 4.0.0 affected
@highcharts grid-pro >= 2.0.0, < 3.2.0 affected
highcharts highcharts >= 2.0.0, < 3.2.0 affected
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I. Basic Information for CVE-2026-116797

Vulnerability Information
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Vulnerability Title
Highcharts Grid Pro: cell-renderer `attributes` map written with raw `setAttribute`
Source: CVE Program / CVE List V5
Vulnerability Description
Highcharts JS is a JavaScript charting library based on SVG. From 2.0.0 until 3.2.0, Highcharts Grid Pro input renderers copy the cells.renderer.attributes and cells.editMode.renderer.attributes maps to input or select elements with raw setAttribute calls. An attacker who controls column configuration can add event-handler attributes to every rendered row or to the control created when a cell enters edit mode. Script then runs in the hosting page origin when a user hovers over or focuses an input or begins editing. This issue is fixed in Grid Pro 3.2.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:L/SI:L/SA: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

Affected Products

Vendor Product Affected Versions CPE Subscribe
highcharts highcharts >= 2.0.0, < 3.2.0 -
@highcharts grid-pro >= 2.0.0, < 3.2.0 -
@highcharts dashboards >= 3.6.0, < 4.0.0 -

II. Public POCs for CVE-2026-116797

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III. Intelligence Information for CVE-2026-116797

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Other References for CVE-2026-116797 (2)

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-2026-118242 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-2026-118248 6.9 MEDIUM Highcharts Dashboards: editableOptions.propertyPath writes to Object.prototype
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-79