CVE-2025-59854
Analyzed Analyzed - Analysis Complete
Insecure X-XSS-Protection Header in HCL DFXAnalytics

Publication date: 2026-05-06

Last updated on: 2026-05-07

Assigner: HCL Software

Description
HCL DFXAnalytics is affected by an Insecure Security Header Configuration vulnerability where the application utilizes the outdated X-XSS-Protection header, which could allow an attacker to exploit browser-specific rendering flaws or bypass security controls that should instead be managed by a robust Content Security Policy (CSP).
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Meta Information
Published
2026-05-06
Last Modified
2026-05-07
Generated
2026-06-16
AI Q&A
2026-05-06
EPSS Evaluated
2026-06-14
NVD
CVE-2025-59854
EUVD
EUVD-2025-209667
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
hcltech dfxanalytics to 4.1 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
CWE-80 The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages.
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Executive Summary

The vulnerability in HCL DFXAnalytics involves the use of an outdated security header called X-XSS-Protection. This header is intended to provide some protection against cross-site scripting (XSS) attacks, but it is no longer considered effective. Because the application relies on this outdated header instead of a more robust Content Security Policy (CSP), attackers might exploit browser-specific rendering flaws or bypass security controls.

Impact Analysis

This vulnerability could allow an attacker to exploit weaknesses in how certain browsers handle the X-XSS-Protection header, potentially leading to the bypass of security controls designed to prevent cross-site scripting attacks. While the impact is limited (CVSS score 3.1), it could result in limited confidentiality loss if an attacker successfully exploits browser-specific flaws.

Compliance Impact

The provided information does not specify how the Insecure Security Header Configuration vulnerability in HCL DFXAnalytics impacts compliance with common standards and regulations such as GDPR or HIPAA.

Detection Guidance

This vulnerability involves the use of an outdated X-XSS-Protection header in HCL DFXAnalytics. To detect it, you can inspect the HTTP response headers from the application to check if the X-XSS-Protection header is present and whether it is outdated or misconfigured.

  • Use curl to fetch headers: curl -I http://<target-application-url>
  • Use browser developer tools (Network tab) to inspect response headers for the X-XSS-Protection header.
  • Use tools like nmap with http-headers script: nmap --script http-headers -p 80,443 <target-ip>
Mitigation Strategies

To mitigate this vulnerability, you should remove or disable the outdated X-XSS-Protection header and instead implement a robust Content Security Policy (CSP) to manage browser security controls effectively.

  • Update the application or web server configuration to remove the X-XSS-Protection header.
  • Implement a strong Content Security Policy (CSP) header to prevent cross-site scripting and related attacks.
  • Consult HCL support or the official security bulletin for any patches or recommended configuration changes.
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