CVE-2026-118251: high-severity vulnerability in highcharts
Highcharts: javascript: URL in credits.href runs script on click
Published
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.4epss 0.4%
exploitation probability
0.4%top 62% of all CVEs
observed exploitation
nono source reports it
Highcharts JS is a JavaScript charting library based on SVG. Prior to 11.4.9, 12.6.1, and 13.1.0, Highcharts assigns credits.href to the window location when the credits label is clicked without checking the URL against the allowed-scheme list. An attacker who controls chart configuration can provide a javascript URL and run script in the origin of the hosting page when a user clicks the credits label. Highcharts Stock, Maps, and Gantt are included because they ship from the same package. This issue is fixed in 11.4.9, 12.6.1 and 13.1.0.
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
Affected products
highcharts · highchartsRelated CVEs — highcharts
In the same product, most dangerous first.
CVE-2021-29489HIGHOptions structure open to XSS if passed unfilteredEPSS 0.9%CVE-2026-118254HIGHHighcharts Grid: pagination language options are parsed as HTMLEPSS 0.4%CVE-2026-118253HIGHHighcharts Dashboards: fullscreen labels are parsed as HTMLEPSS 0.4%CVE-2026-118252HIGHHighcharts Dashboards: sidebar component labels are parsed as HTMLEPSS 0.4%CVE-2026-118250HIGHHighcharts: dotted series.keys paths write to Object.prototypeEPSS 0.4%CVE-2026-118249HIGHHighcharts: series column construction writes to Object.prototypeEPSS 0.4%