PT-2019-14877 · WordPress · Visualizer

Published 2019-10-03 · Updated 2019-10-09 · CVE-2019-16931

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Visualizer plugin version 3.3.0

Description A stored XSS issue 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 the "wp-json/visualizer/v1/update-chart" endpoint registers with no access control, and the classes/Visualizer/Render/Page/Data.php file lacks output sanitization for user input.

Recommendations For Visualizer plugin version 3.3.0, update the plugin to a version that includes output sanitization for the "wp-json/visualizer/v1/update-chart" endpoint and implements proper access control to prevent unauthorized access. As a temporary workaround, consider restricting access to the admin dashboard to minimize the risk of exploitation.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2019-16931

Affected Products

Visualizer

References · 5

• 🔥 https://nathandavison.com/blog/wordpress-visualizer-plugin-xss-and-ssrf · Exploit
• 🔥 https://wpvulndb.com/vulnerabilities/9893 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2019-16931 · Security Note
• https://osv.dev/vulnerability/CVE-2019-16931 · Vendor Advisory
• https://wordpress.org/plugins/visualizer/#developers · Note