CWE-644

Improper Neutralization of HTTP Headers for Scripting Syntax

The product does not neutralize or incorrectly neutralizes web scripting syntax in HTTP headers that can be used by web browser components that can process raw headers, such as Flash.

CVE-2022-43847 (GCVE-0-2022-43847)
Vulnerability from cvelistv5
Published
2025-04-14 20:22
Modified
2025-08-15 15:20
Severity ?
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
CWE
  • CWE-644 - Improper Neutralization of HTTP Headers for Scripting Syntax
Summary
IBM Aspera Console 3.4.0 through 3.4.4 is vulnerable to HTTP header injection, caused by improper validation of input by the HOST headers. This could allow an attacker to conduct various attacks against the vulnerable system, including cross-site scripting, cache poisoning or session hijacking.
References
Impacted products
Vendor Product Version
IBM Aspera Console Version: 3.4.0   ≤ 3.4.4
    cpe:2.3:a:ibm:aspera_console:3.4.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:aspera_console:3.4.4:*:*:*:*:*:*:*
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CVE-2023-35894 (GCVE-0-2023-35894)
Vulnerability from cvelistv5
Published
2025-03-07 16:47
Modified
2025-08-17 00:08
Severity ?
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
CWE
  • CWE-644 - Improper Neutralization of HTTP Headers for Scripting Syntax
Summary
IBM Control Center 6.2.1 through 6.3.1 is vulnerable to HTTP header injection, caused by improper validation of input by the HOST headers. This could allow an attacker to conduct various attacks against the vulnerable system, including cross-site scripting, cache poisoning or session hijacking.
References
Impacted products
Vendor Product Version
IBM Control Center Version: 6.2.1   ≤ 6.3.1
    cpe:2.3:a:ibm:control_center:6.2.1.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:control_center:6.3.1.0:*:*:*:*:*:*:*
 Create a notification for this product.
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CVE-2024-40686 (GCVE-0-2024-40686)
Vulnerability from cvelistv5
Published
2025-07-23 11:12
Modified
2025-08-18 01:28
Severity ?
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
CWE
  • CWE-644 - Improper Neutralization of HTTP Headers for Scripting Syntax
Summary
IBM SmartCloud Analytics - Log Analysis 1.3.7.0, 1.3.7.1, 1.3.7.2, 1.3.8.0, 1.3.8.1, and 1.3.8.2 is vulnerable to HTTP header injection, caused by improper validation of input by the HOST headers. This could allow an attacker to conduct various attacks against the vulnerable system, including cross-site scripting, cache poisoning or session hijacking.
References
Impacted products
Vendor Product Version
IBM SmartCloud Analytics Log Analysis Version: 1.3.7.0, 1.3.7.1, 1.3.7.2, 1.3.8.0, 1.3.8.1, 1.3.8.2
    cpe:2.3:a:ibm:smartcloud_analytics_log_analysis:1.3.7.0:*:*:*:*:*:*:*
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    cpe:2.3:a:ibm:smartcloud_analytics_log_analysis:1.3.7.2:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:smartcloud_analytics_log_analysis:1.3.8.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:smartcloud_analytics_log_analysis:1.3.8.1:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:smartcloud_analytics_log_analysis:1.3.8.2:*:*:*:*:*:*:*
 Create a notification for this product.
Show details on NVD website

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CVE-2025-0154 (GCVE-0-2025-0154)
Vulnerability from cvelistv5
Published
2025-04-02 15:15
Modified
2025-09-01 00:59
Severity ?
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CWE
  • CWE-644 - Improper Neutralization of HTTP Headers for Scripting Syntax
Summary
IBM TXSeries for Multiplatforms 9.1 and 11.1 could disclose sensitive information to a remote attacker due to improper neutralization of HTTP headers.
References
Impacted products
Vendor Product Version
IBM TXSeries for Multiplatforms Version: 9.1
Version: 11.1
    cpe:2.3:a:ibm:txseries_for_multiplatforms:9.1:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:txseries_for_multiplatforms:11.1:*:*:*:*:*:*:*
 Create a notification for this product.
Show details on NVD website

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CVE-2025-13434 (GCVE-0-2025-13434)
Vulnerability from cvelistv5
Published
2025-11-20 01:02
Modified
2025-11-20 15:07
Severity ?
5.5 (Medium) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RC:R
5.3 (Medium) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RC:R
CWE
  • CWE-644 - Improper Neutralization of HTTP Headers for Scripting Syntax
Summary
A weakness has been identified in jameschz Hush Framework 2.0. The impacted element is an unknown function of the file Hush\hush-lib\hush\Util.php of the component HTTP Host Header Handler. This manipulation of the argument $_SERVER['HOST'] causes improper neutralization of http headers for scripting syntax. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be exploited. The vendor was contacted early about this disclosure but did not respond in any way.
References
Impacted products
Vendor Product Version
jameschz Hush Framework Version: 2.0
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CVE-2025-27632 (GCVE-0-2025-27632)
Vulnerability from cvelistv5
Published
2025-03-25 12:37
Modified
2025-10-24 12:10
Severity ?
6.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CWE
  • CWE-644 - Improper Neutralization of HTTP Headers for Scripting Syntax
Summary
A Host Header Injection vulnerability in TRMTracker application may allow an attacker by modifying the host header value in an HTTP request to leverage multiple attack vectors, including defacing the site content through web-cache poisoning.
References
Impacted products
Vendor Product Version
Hitachi Energy TRMTracker Version: 6.2   <
Version: 6.3   <
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CVE-2025-2950 (GCVE-0-2025-2950)
Vulnerability from cvelistv5
Published
2025-04-18 14:50
Modified
2025-08-28 16:41
Severity ?
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
CWE
  • CWE-644 - Improper Neutralization of HTTP Headers for Scripting Syntax
Summary
IBM i 7.3, 7.4, 7.5, and 7.5 is vulnerable to a host header injection attack caused by improper neutralization of HTTP header content by IBM Navigator for i. An authenticated user can manipulate the host header in HTTP requests to change domain/IP address which may lead to unexpected behavior.
References
Impacted products
Vendor Product Version
IBM i Version: 7.3
Version: 7.4
Version: 7.5
Version: 7.6
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    cpe:2.3:a:ibm:i:7.6:*:*:*:*:*:*:*
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CVE-2025-36223 (GCVE-0-2025-36223)
Vulnerability from cvelistv5
Published
2025-11-12 21:04
Modified
2025-11-13 15:03
Severity ?
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
CWE
  • CWE-644 - Improper Neutralization of HTTP Headers for Scripting Syntax
Summary
IBM OpenPages 9.0 and 9.1 is vulnerable to HTTP header injection, caused by improper validation of input by the HOST headers. This could allow an attacker to conduct various attacks against the vulnerable system, including cross-site scripting, cache poisoning or session hijacking.
References
Impacted products
Vendor Product Version
IBM OpenPages Version: 9.0
Version: 9.1
    cpe:2.3:a:ibm:openpages:9.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:openpages:9.1:*:*:*:*:*:*:*
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CVE-2025-52647 (GCVE-0-2025-52647)
Vulnerability from cvelistv5
Published
2025-10-10 22:14
Modified
2025-10-14 15:00
Severity ?
6.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CWE
  • CWE-644 - Improper Neutralization of HTTP Headers for Scripting Syntax
Summary
The BigFix WebUI application responds with HOST information from the HTTP header field making it vulnerable to Host Header Poisoning Attacks.
References
Impacted products
Vendor Product Version
HCL Software BigFix WebUI Version: v11
 Create a notification for this product.
Show details on NVD website

To clipboard 

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CVE-2025-64484 (GCVE-0-2025-64484)
Vulnerability from cvelistv5
Published
2025-11-10 21:33
Modified
2025-11-14 19:24
Severity ?
8.5 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
CWE
  • CWE-644 - Improper Neutralization of HTTP Headers for Scripting Syntax
Summary
OAuth2-Proxy is an open-source tool that can act as either a standalone reverse proxy or a middleware component integrated into existing reverse proxy or load balancer setups. In versions prior to 7.13.0, all deployments of OAuth2 Proxy in front of applications that normalize underscores to dashes in HTTP headers (e.g., WSGI-based frameworks such as Django, Flask, FastAPI, and PHP applications). Authenticated users can inject underscore variants of X-Forwarded-* headers that bypass the proxy’s filtering logic, potentially escalating privileges in the upstream app. OAuth2 Proxy authentication/authorization itself is not compromised. The problem has been patched with v7.13.0. By default all specified headers will now be normalized, meaning that both capitalization and the use of underscores (_) versus dashes (-) will be ignored when matching headers to be stripped. For example, both `X-Forwarded-For` and `X_Forwarded-for` will now be treated as equivalent and stripped away. For those who have a rational that requires keeping a similar looking header and not stripping it, the maintainers introduced a new configuration field for Headers managed through the AlphaConfig called `InsecureSkipHeaderNormalization`. As a workaround, ensure filtering and processing logic in upstream services don't treat underscores and hyphens in Headers the same way.
References
Impacted products
Vendor Product Version
oauth2-proxy oauth2-proxy Version: < 7.13.0
 Create a notification for this product.
Show details on NVD website

To clipboard 

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Mitigation

Phase: Architecture and Design

Description:

  • Perform output validation in order to filter/escape/encode unsafe data that is being passed from the server in an HTTP response header.
Mitigation

Phase: Architecture and Design

Description:

  • Disable script execution functionality in the clients' browser.

No CAPEC attack patterns related to this CWE.

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