CVE-2026-86784CWE-79cross-site-scripting

CVE-2026-86784

Medium · published September 16, 2026

CVSS v3.1
6.8
EPSS
0%
Percentile
36.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.8 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00431 · 36.3th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-09-16T10:16Z
References (1)
https://wpscan.com/vulnerability/9ac2d380-62fd-4967-8697-40175ffdf1c7/ · [email protected]
EPSS history
Timeline
  • 17 SEP 03:33Z
    EPSS moved — → 0%
    epss
  • 16 SEP 06:00Z
    Visualizer < 4.0.8 - Contributor+ Stored XSS via JSON Data Source
    cvelistv5