CVE-2026-4730

MEDIUM 6.4

Charts Ninja: Create Beautiful Graphs & Charts and Easily Add Them to Your Website <= 2.1.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'chartid' Shortcode Attribute

CVSS Score

6.4

EPSS Score

0.0%

EPSS Percentile

0th

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 to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

CWE	CWE-79
Vendor	commonninja
Product	charts ninja: create beautiful graphs & charts and easily add them to your website
Published	May 5, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

commonninja / Charts Ninja: Create Beautiful Graphs & Charts and Easily Add Them to Your Website

0 ≤ 2.1.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/491c7680-d270-41ed-a756-9397a0bd86bc?source=cve wordpress.org: https://wordpress.org/plugins/charts-ninja-graphs-and-charts plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/charts-ninja-graphs-and-charts/tags/2.1.0/chartsninja.php#L24 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/charts-ninja-graphs-and-charts/trunk/chartsninja.php#L24

Credits

Djaidja Moundjid