CVE-2026-118255 Highcharts Grid - Stored XSS

Highcharts Grid 2.0.0 to 3.2.0 contains a stored XSS caused by lack of URL scheme validation in credits.href, letting attackers execute script in the hosting page origin, exploit requires attacker control of Grid configuration.

CVSS base score 8.4 /10
High
CISA KEV
Not listed
Public exploit
None known
View the NVD record ↗

Details

Type
Stored XSS
Impact
Stored XSS
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N/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
28 October 2026
Updated
29 October 2026
Weakness
CWE-79

Vendor fix

Update to Grid Pro 3.2.0 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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