Weakness (CWE)
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.
How to prevent it (2 mitigations)
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Architecture and Design
Carefully control data that is being placed both in HTTP response headers and in the HTTP response body to ensure that no scripting syntax is present, taking various encodings into account. Perform output validation in order to filter/escape/encode unsafe data that is being passed from the server in an HTTP response header.
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Architecture and Design
Disable script execution functionality in the clients' browser.
Source: MITRE CWE-644
41 results · Clear filters · Feed
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Medium 5.3
Multiple vulnerabilities in SAP Business AI Platform (Approuter)
SAP Approuter does not sufficiently sanitize certain request headers before forwarding traffic to internal components. An unauthenticated attacker could send a specially crafted request to obtain limited unauthorized access to information. This results in a l…
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Medium 6.1
picocms Pico - Host Header Injection Enables Script Source Hijacking
A host header injection vulnerability in picocms/Pico through 2.1.4 allows an unauthenticated remote attacker to control the origin of JavaScript and CSS assets loaded by the default theme. When base_url is unset (the default), Pico::getBaseUrl in lib/Pico.ph…
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Medium 6.5
A improper neutralization of HTTP Headers for Scripting Syntax vulnerability in SonicOS could allow a remote attacker t…
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Medium 5.9
Litestar: AllowedHostsMiddleware bypasses host validation via client-controlled X-Forwarded-Host header
Litestar is an Asynchronous Server Gateway Interface (ASGI) framework. In versions prior to 2.22.0, an attacker can bypass the allowed hosts validation by omitting the Host header and supplying an X-Forwarded-Host header set to a whitelisted domain. The Allow…
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Medium 5.4CVE-2026-54477 Public exploit
Gardyn IoT Hub Improper Neutralization of HTTP Headers for Scripting Syntax
The admin panel lacks standard security headers, enabling clickjacking and cross-site scripting attacks.
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Medium 6.9
Craft CMS: Blind SSRF and Arbitrary JavaScript Injection via Host Header Poisoning in actionResourceJs
Craft CMS is a content management system (CMS). Versions 4.0.0-RC1 and above, prior to 4.18.0 and 5.0.0-RC1, and above, prior to 5.10.0, are vulnerable to Server-Side Request Forgery (SSRF) and Arbitrary JavaScript Injection through the /actions/app/resource-…
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Medium 6.5
IBM Engineering Lifecycle Management - Engineering Workflow Management is impacted by vulnerabilities Host Header Injection observed
IBM Engineering Workflow Management 7.0.2 through 7.0.2 Interim Fix 035, 7.0.3 through 7.0.3 Interim Fix 017, and 7.1 through 7.1 Interim Fix 004 is vulnerable to HTTP header injection, caused by improper validation of input by the HOST headers. This could al…
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Medium 5.1
Improper neutralization of HTTP headers in Password Manager
Improper handling of HTTP headers that allows a remote attacker to manipulate the value of the Host header using specially crafted requests. A successful exploit could result in the generation of manipulated links or responses, potentially leading to limited …
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Medium 6.5
A vulnerability has been identified in IBM DevOps Plan that allows a Host Header Injection attack due to improper handling of the Host header in HTTP requests.
IBM DevOps Plan 3.0.0 through 3.0.6 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, cach…
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Medium 5.4
Multiple vulnerabilities have been addressed in IBM Aspera Shares
IBM Aspera Shares 1.9.9 through 1.11.0 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, …
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Medium 6.5
IBM InfoSphere Information Server is vulnerable to HTTP header injection
IBM InfoSphere Information Server 11.7.0.0 through 11.7.1.6 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 cr…
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Medium 5.4
Multiple vulnerabilities in IBM Aspera Orchestrator
IBM Aspera Orchestrator 3.0.0 through 4.1.2 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 scripti…
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Medium 5.4
Multiple vulnerabilities in IBM Aspera Faspex
IBM Aspera Faspex 5 5.0.0 through 5.0.14.3 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 scripti…
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Medium 5.3
HTTP Host header vulnerability in WebClient and WebScheduler web apps
A HTTP Host header attack vulnerability affects WebClient and the WebScheduler web apps of PcVue in version 15.0.0 through 16.3.3 included, allowing a remote attacker to inject harmful payloads that manipulate server-side behavior. This vulnerability only aff…
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Medium 6.5
Multiple vulnerabilities in IBM Java SDK affecting Db2 Recovery Expert for Linux, Unix and Windows
IBM DB2 Recovery Expert for LUW 5.5 Interim Fix 002 IBM Db2 Recovery Expert for Linux, UNIX and Windows is vulnerable to HTTP header injection, caused by improper validation of input by the HOST headers. This could allow an attacker to conduct various attack…
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Medium 6.5
Multiple Vulnerabilities in IBM Concert Software
IBM Concert 1.0.0 through 2.1.0 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 po…
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Medium 5.4
Tornado vulnerable to Header Injection and XSS via reason argument
Tornado is a Python web framework and asynchronous networking library. In versions 6.5.2 and below, the supplied reason phrase is used unescaped in HTTP headers (where it could be used for header injection) or in HTML in the default error page (where it could…
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Medium 5.3
jameschz Hush Framework HTTP Host Header Util.php http headers for scripting syntax
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 ne…
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Medium 6.1
Backdrop CMS Host Header Injection vulnerability
Host Header Injection vulnerability in Backdrop CMS 1.32.1 allows attackers to manipulate the Host header in password reset requests, leading to redirects to malicious domains and potential session hijacking via cookie injection.
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Medium 5.4
IBM OpenPages Host Header Injection
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 poisonin…
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Medium 6.1
HCL BigFix WebUI is affected by a host header poisoning vulnerability
The BigFix WebUI application responds with HOST information from the HTTP header field making it vulnerable to Host Header Poisoning Attacks.
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Medium 5.4
IBM SmartCloud Analytics - Log Analysis HOST header injection
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 agains…
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Medium 5.0
A vulnerability in the web application of ctrlX OS allows a remote unauthenticated attacker to conduct various attacks …
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Medium 5.4
IBM i improper HTTP header neutralization
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 whi…
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Medium 5.4
IBM Aspera Console HTTP header injection
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, c…
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Medium 5.3
IBM TXSeries for Multiplatforms information disclosure
IBM TXSeries for Multiplatforms 9.1 and 11.1 could disclose sensitive information to a remote attacker due to improper neutralization of HTTP headers.
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Medium 6.1
A Host Header Injection vulnerability in TRMTracker application may allow an attacker by modifying the host header valu…
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Medium 5.4
IBM Control Center HOST header injection
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, c…
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Medium 6.1
A Host header injection vulnerability exists in CTFd 3.7.5, due to the application failing to properly validate or sani…
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Medium 5.3
HCL Nomad server on Domino is affected by a host header injection vulnerability
The HTTP host header can be manipulated and cause the application to behave in unexpected ways. Any changes made to the header would cause the request to be sent to a completely different domain/IP address.
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Medium 5.4
IBM Aspera Orchestrator HTTP header injection
IBM Aspera Orchestrator 4.0.1 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 pois…
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Medium 6.5
IBM Datacap Navigator HTTP HOST header injection
IBM Datacap Navigator 9.1.5, 9.1.6, 9.1.7, 9.1.8, and 9.1.9 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 cr…
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Medium 5.4
IBM Aspera Faspex HTTP header injection
IBM Aspera Faspex 5.0.0 and 5.0.1 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 …
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Medium 4.3
Improper Neutralization of HTTP Headers in github.com/greenpau/caddy-security
All versions of the package github.com/greenpau/caddy-security are vulnerable to HTTP Header Injection via the X-Forwarded-Proto header due to redirecting to the injected protocol.Exploiting this vulnerability could lead to bypass of security mechanisms or co…
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Medium 5.1
IBM Engineering Lifecycle Optimization HTTP header injection
IBM Engineering Lifecycle Optimization 7.0.2 and 7.0.3 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-s…
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Medium 5.3
Forwarded header exploit with Spring HATEOAS on WebFlux
Reactive web applications that use Spring HATEOAS to produce hypermedia-based responses might be exposed to malicious forwarded headers if they are not behind a trusted proxy that ensures correctness of such headers, or if they don't have anything else in pla…
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Medium 5.4
Dell EMC Data Protection Central, versions 19.1 through 19.7, contains a Host Header Injection vulnerability. A remote …
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Medium 5.4
IBM API Connect HOST header injection
IBM API Connect V10.0.0.0 through V10.0.5.0, V10.0.1.0 through V10.0.1.7, and V2018.4.1.0 through 2018.4.1.19 is vulnerable to HTTP header injection, caused by improper validation of input by the HOST headers. This could allow an attacker to conduct various a…
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Medium 4.8
HTTP Host Header Injection in Request Handling in Typo3
TYPO3 is an open source PHP based web content management system released under the GNU GPL. It has been discovered that TYPO3 CMS is susceptible to host spoofing due to improper validation of the HTTP Host header. TYPO3 uses the HTTP Host header, for example,…
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Medium 6.1
HTTP header injection vulnerability in Everything version 1.0, 1.1, and 1.2 except the Lite version may allow a remote …