PT-2026-36952 · WordPress · Ninja Charts

Djaidja Moundjid · Published 2026-05-05 · Updated 2026-05-21 · CVE-2026-4730

Positive Technologies (AI Summary)

CVSS v3.1

6.4

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Charts Ninja: Create Beautiful Graphs & Charts and Easily Add Them to Your Website versions prior to 2.1.1

Description The plugin is subject to Stored Cross-Site Scripting (XSS), a flaw where malicious scripts are permanently stored on the target server. This occurs due to insufficient input sanitization and output escaping within the chartid attribute of the shortcode. Authenticated attackers with Contributor-level access or higher can inject arbitrary web scripts into pages, which then execute when a user visits the affected page.

Recommendations Update the plugin to a version later than 2.1.0.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-4730

Affected Products

Ninja Charts

References · 11

• https://nvd.nist.gov/vuln/detail/CVE-2026-4730 · Security Note
• https://t.me/CVEtracker/52694 · Telegram Post
• https://wordfence.com/threat-intel/vulnerabilities/id/491c7680-d270-41ed-a756-9397a0bd86bc?source=cve · Note
• https://twitter.com/CVEarity/status/2051578867740209492 · Twitter Post
• https://reddit.com/r/StopBadBots/comments/1tjv1es/critical_warning_62_plugins_2_themes_11_still · Reddit Post
• https://twitter.com/VulmonFeeds/status/2051616120709226774 · Twitter Post
• https://t.me/cveNotify/162127 · Telegram Post
• https://reddit.com/r/StopBadBots/comments/1td9gea/critical_warning_these_14_wordpress_plugins · Reddit Post
• https://wordpress.org/plugins/charts-ninja-graphs-and-charts · Note
• https://plugins.trac.wordpress.org/browser/charts-ninja-graphs-and-charts/tags/2.1.0/chartsninja.php#L24 · Note
• https://plugins.trac.wordpress.org/browser/charts-ninja-graphs-and-charts/trunk/chartsninja.php#L24 · Note