MEDIUMCVSS v4 6.9Vulnerability
CVE-2026-118248
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.
Properties
- Severity
- MEDIUM
- Nvd fetched at
- 2026-10-28T19:43:42.952230+00:00
- Cvss score
- 6.9
- Cvss severity
- MEDIUM
- Retrieved at
- 2026-10-28T19:44:28+00:00
- Score
- 6.9
- Last source
- NVD
- Cvss version
- 4.0
- Cve id
- CVE-2026-118248
- Cvss vector
- 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- First seen by Signal
- 2026-10-28T19:44:28+00:00
- Vector
- 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Published at
- 2026-10-28T18:17:15.870
- Last modified
- 2026-10-28T18:17:15.870
Related Entities (1)
HAS_WEAKNESS (1)
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