vulnerability

WordPress Plugin: visualizer: CVE-2019-16931: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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Severity

CVSS

(AV:N/AC:M/Au:N/C:N/I:P/A:N)

Published

Sep 28, 2019

Added

May 15, 2025

Modified

May 4, 2026

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.

Solution

visualizer-plugin-cve-2019-16931

References

https://www.cve.org/CVERecord?id=CVE-2019-16931
https://www.wordfence.com/threat-intel/vulnerabilities/id/eaaf1ac0-1ea6-4bcb-a385-87267525801c?source=api-prod
https://euvd.enisa.europa.eu/vulnerability/EUVD-2019-7424
CVE-2019-16931
https://attackerkb.com/topics/CVE-2019-16931
CWE-79
EUVD-EUVD-2019-7424

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