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vBulletin - Open Redirect Detection

🗓️ 28 Jul 2026 11:27:38Reported by KittySploitType 
kittysploit
 kittysploit
🔗 kittysploit.com👁 2 Views

Open redirect in vBulletin via the redirector.php URL parameter.

Related
Refs
Code
ReporterTitlePublishedViews
Family
cnvd
CNVD
vBulletin 'url' parameter open redirect vulnerability
25 Jan 201800:00
–cnvd
cve
CVE
CVE-2018-6200
25 Jan 201804:00
–cve
cvelist
Cvelist
CVE-2018-6200
25 Jan 201804:00
–cvelist
nuclei
Nuclei
vBulletin - Open Redirect
14 Oct 202602:05
–nuclei
nvd
NVD
CVE-2018-6200
25 Jan 201804:29
–nvd
openvas
OpenVAS
vBulletin 3.x, 4.2.x <= 4.2.5 'url' GET Parameter Open Redirect Vulnerability - Active Check
8 Feb 201800:00
–openvas
osv
OSV
CVE-2018-6200
25 Jan 201804:29
–osv
prion
Prion
Open redirect
25 Jan 201804:29
–prion
ptsecurity
Positive Technologies
PT-2018-17404
25 Jan 201800:00
–ptsecurity
rapid7
Rapid7 Vulnerability Database (full)
CVE-2018-6200: URL Redirection to Untrusted Site
25 Jan 201800:00
–rapid7
Rows per page
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""vBulletin 3."""

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


class Module(Scanner, Http_client):
    __info__ = {
        'name': 'vBulletin - Open Redirect Detection',
        'description': 'vBulletin 3.x.x and 4.2.x through 4.2.5 contains an open redirect vulnerability via the redirector.php URL parameter. An attacker can redirect a user to a malicious site and possibly obtain sensitive information, modify data, and/or execute unauthorized operations.',
        'author': ['KittySploit Team'],
        'severity': 'medium',
        'tags': ['web', 'scanner', 'cve', 'cve2018', 'redirect', 'vbulletin', 'vuln'],
        'agent': {
            'risk': 'active',
            'effects': ['network_probe'],
            'expected_requests': 2,
            'reversible': True,
            'approval_required': False,
            'produces': ['tech_hints', 'risk_signals', 'endpoints'],
            'cost': 1.0,
            'noise': 0.3,
            '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': 'admin_surface',
                        'from_detail': '',
                    },
                ],
                'consumes_capabilities': [],
                'option_bindings': {},
                'suggested_followups': ['auxiliary/scanner/http/login_page_detector'],
            },
        },
        'references': [
            'https://cxsecurity.com/issue/WLB-2018010251',
            'https://nvd.nist.gov/vuln/detail/CVE-2018-6200',
            'https://github.com/ARPSyndicate/kenzer-templates',
        ],
        'cve': 'CVE-2018-6200',
    }

    def run(self):
        for path in ('/redirector.php?url=https://interact.sh', '/redirector.php?do=nodelay&url=https://interact.sh'):
            r = self.http_request(method="GET", path=path, allow_redirects=False)
            if not r or r.status_code != 200:
                continue
            body = r.text or ""
            body_any = ('<meta http-equiv="refresh" content="0; URL=https://interact.sh">',)
            if (any(m in body for m in body_any)):
                self.set_info(
                    severity='medium',
                    reason="vBulletin - Open Redirect detected",
                    path=path,
                )
                return True
        return False

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28 Jul 2026 11:27Current
6.1Medium risk
Vulners AI Score6.1
CVSS 25.8
CVSS 36.1
EPSS0.03474
2