CVE Catalog

CVE-2026-45249

MediumCVSS 6.1
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Elevated risk
0.76%

51th percentile - higher than 51% of all known CVEs

Summary

An XSS vulnerability in Apache ECharts tooltip rendering for Lines series. Without a custom formatter, HTML in data point names is rendered unescaped, potentially leading to script execution.

Risk Assessment

An attacker can inject malicious script into tooltips, potentially leading to session data theft or other actions in the victim's context.

Recommendation

Upgrade Apache ECharts to version 6.1.0 or later.

Related vulnerabilities

Original NVD description (English source)

A cross-site scripting (XSS) vulnerability exists in Apache ECharts in the Lines series tooltip rendering logic. This issue affects Apache ECharts: from before 6.1.0. In versions prior to 6.1.0, if both Lines series and tooltip are used, and no user-specified tooltip.formatter is provided, and series.data[i].name is specified, raw HTML string series.data[i].name can be rendered through innerHTML sink into tooltip content. Although tooltip is allowed to accept user-provided raw HTML via a custom tooltip.formatter, the built-in tooltip formatters conventionally perform HTML escaping automatically. This case breaks that convention and may unexpectedly lead to script execution when tooltips are displayed. Users are recommended to upgrade to version 6.1.0 if using the Lines series in this way, which fixes the issue.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS