What’s Vulnerable › Vulnerabilities

CVE-2019-16931

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-10-03 · updated 2026-06-17
• Weakness: CWE-79

Description

A stored XSS vulnerability in the Visualizer plugin 3.3.0 for WordPress allows an unauthenticated attacker to execute arbitrary JavaScript when an admin or other privileged user edits the chart via the admin dashboard. This occurs because classes/Visualizer/Gutenberg/Block.php registers wp-json/visualizer/v1/update-chart with no access control, and classes/Visualizer/Render/Page/Data.php lacks output sanitization.

Affected products

• themeisle Visualizer: Tables and Charts Manager for WordPress: through 3.3.0

References

• https://nathandavison.com/blog/wordpress-visualizer-plugin-xss-and-ssrf
• https://wordpress.org/plugins/visualizer/#developers
• https://wpvulndb.com/vulnerabilities/9893
• https://nathandavison.com/blog/wordpress-visualizer-plugin-xss-and-ssrf
• https://wordpress.org/plugins/visualizer/#developers
• https://wpvulndb.com/vulnerabilities/9893

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