CVE-2025-59854
Insecure X-XSS-Protection Header in HCL DFXAnalytics
Publication date: 2026-05-06
Last updated on: 2026-05-06
Assigner: HCL Software
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| hcl | dfxanalytics | * |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| 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. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
The vulnerability in HCL DFXAnalytics involves the use of an outdated security header called X-XSS-Protection.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.
How can this vulnerability impact me? :
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.
How can this vulnerability be detected on my network or system? Can you suggest some commands?
This vulnerability involves the use of an outdated X-XSS-Protection header in HCL DFXAnalytics.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the HTTP response headers from the application to check if the X-XSS-Protection header is present and whether it is outdated or misconfigured.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>
What immediate steps should I take to mitigate this vulnerability?
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.