How severe is CVE-2026-4730?

Medium severity. CVSS v3 base score is 6.4 out of 10.

XSS in Commonninja Charts Ninja: Create Beautiful Graphs & And Easily Add Them To Your Website

CVE-2026-4730

The Charts Ninja: Create Beautiful Graphs & Charts and Easily Add Them to Your Website plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'chartid' shortcode attribute in all versions up to, and including, 2.1.0 due…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.000 (10.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.

Affected products

Commonninja Charts Ninja: Create Beautiful Graphs & And Easily Add Them To Your Website — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Frequently asked questions

What is CVE-2026-4730?: CVE-2026-4730 is a medium-severity vulnerability in Commonninja Charts Ninja: Create Beautiful Graphs & And Easily Add Them To Your Website, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-05-05.
How severe is CVE-2026-4730?: Medium severity. CVSS v3 base score is 6.4 out of 10.