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CVE-2026-86784mediumCWE-79

Visualizer < 4.0.8 - Contributor+ Stored XSS via JSON Data Source

33Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 6.8epss 0.4%
exploitation probability
0.4%top 65% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
The Visualizer WordPress plugin before 4.0.8 does not sanitise and escape a chart's JSON data source configuration before outputting it back in the chart editor, allowing users with the Contributor role and above to store JavaScript that executes in the browser of any higher-privileged user, such as an administrator, who reviews the affected chart.
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
Affected products
Unknown · Visualizer
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.