CVE-2026-86784Medium· 6.8▾ Sunlit

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 tha…

▾ Sunlit zone — Low / medium · no exploitation signal

Depth score37/ 100 · Low

impact 37.4 · likelihood 0.1 · exploitation 0

⚡ Agent-ready:Raw markdown ↗JSON ↗

Proof of concept

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Published

Sep 16, 2026

Updated

Sep 17, 2026

CVSS

6.8

Vendor

—

Product

Visualizer

CWE

CWE-79

Depth score

37 · Low

EPSS

0.40% · p33

Platforms

—

Source

NVD

Vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

CISA SSVC

decided 2026-09-17

Exploitation: none
Automatable: no
Technical impact: total

Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.

EPSS history

Exploit-prediction probability, daily snapshots since Sep 17.

0.2% → 0.4%▲ 0.2%

Timeline

Disclosure to exploitation, from the record and what we observed since indexing it.

6 events · 3 days

Sep 16, 2026Published
Disclosed via NVD
Sep 17, 2026Record revised
Last analysed / modified upstream
Sep 17, 2026EPSS first tracked
0.2%
Sep 17, 2026CVSS changed
— → 6.8
Sep 17, 2026Severity changed
none → medium
Sep 19, 2026EPSS peak
0.2% → 0.4%

CWE-79 #nvd #cve.org

Affected

Visualizer < 4.0.8

Full technical detail▾

Overview

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.

Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

References

[email protected] — https://wpscan.com/vulnerability/9ac2d380-62fd-4967-8697-40175ffdf1c7/

Change history

Field changes observed since this record was first indexed.

Sep 17, 2026CVSS — → 6.8
Sep 17, 2026Severity none → medium

Related vulnerabilities

Connected by shared product, vendor, weakness, or advisory.

#nvd#cve.org

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