GHSA-4M6C-649P-F6GF Serendipity has a Host Header Injection allows authentication cookie scoping to attacker-controlled domain in functions_config.inc.php

Summary The serendipitysetCookie function uses $SERVER'HTTPHOST' without validation as the domain parameter of setcookie. An attacker can force authentication cookies — including session tokens and auto-login tokens — to be scoped to an attacker-controlled domain, facilitating session hijacking...

EUVD-2026-22809

Serendipity has a Host Header Injection allows authentication cookie scoping to attacker-controlled domain in functionsconfig.inc.php...

Host Header Injection

github.com/zitadel/zitadel is vulnerable to Host Header Injection. The vulnerability is due to improper validation of the Forwarded or X-Forwarded-Host headers when generating password reset links, which allows an attacker to manipulate the link to a malicious domain and capture the reset code,...

CVE-2026-35507

Shynet before 0.14.0 allows Host header injection in the password reset flow...

EUVD-2026-18566

Shynet before 0.14.0 allows Host header injection in the password reset flow...

CVE-2026-35507

Shynet before 0.14.0 allows Host header injection in the password reset flow...

CVE-2026-35507

Shynet before 0.14.0 allows Host header injection in the password reset flow...

CVE-2026-35507

Shynet before 0.14.0 allows Host header injection in the password reset flow...

CVE-2026-35507

CVE-2026-35507 affects Shynet before version 0.14.0. The issue is a Host header injection flaw in the password reset flow, with a CVSS 3.1 base score of 6.4 (Network, High impact on integrity; Low on confidentiality and availability; User interaction required). Root cause is insecure Host header ...

CVE-2026-35507

Shynet before 0.14.0 allows Host header injection in the password reset flow...

CVE-2026-35507

Shynet before 0.14.0 allows Host header injection in the password reset flow...

PT-2026-29970

Name of the Vulnerable Software and Affected Versions Shynet versions prior to 0.14.0 Description Shynet versions before 0.14.0 are susceptible to Host header injection within the password reset process. Recommendations Update Shynet to version 0.14.0 or later...

Heimdall - Host Header Injection & Open Redirect

LinuxServer.io Heimdall 2.6.3-ls307 contains a host header injection caused by improper validation of user-supplied HTTP headers X-Forwarded-Host and Referer, letting unauthenticated remote attackers perform host header injection and open redirect attacks, exploit requires no special privileges...

PT-2026-29643

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, cache poisoning or session hijacking...

CVE-2026-34442 FreeScout: Host Header Injection Leading to External Resource Loading and Open Redirect in FreeScout

FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.211, host header manipulation in FreeScout version http://localhost:8080/system/status allows an attacker to inject an arbitrary domain into generated absolute URLs. This leads to External...

CVE-2026-34442

FreeScout (PHP/Laravel) is affected prior to version 1.8.211 due to host header manipulation in-generated absolute URLs. The vulnerability arises because the application uses the unvalidated Host header to construct links and assets, enabling External Resource Loading and Open Redirects to attack...

CVE-2026-34442 FreeScout: Host Header Injection Leading to External Resource Loading and Open Redirect in FreeScout

FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.211, host header manipulation in FreeScout version http://localhost:8080/system/status allows an attacker to inject an arbitrary domain into generated absolute URLs. This leads to External...

CVE-2026-33149 Tandoor Recipes Vulnerable to Host Header Injection

Tandoor Recipes is an application for managing recipes, planning meals, and building shopping lists. Versions up to and including 2.5.3 set ALLOWEDHOSTS = '' by default, which causes Django to accept any value in the HTTP Host header without validation. The application uses request.buildabsoluteu...

CVE-2026-33149 Tandoor Recipes Vulnerable to Host Header Injection

Tandoor Recipes is an application for managing recipes, planning meals, and building shopping lists. Versions up to and including 2.5.3 set ALLOWEDHOSTS = '' by default, which causes Django to accept any value in the HTTP Host header without validation. The application uses request.buildabsoluteu...

CVE-2026-33149 Tandoor Recipes Vulnerable to Host Header Injection

Tandoor Recipes is an application for managing recipes, planning meals, and building shopping lists. Versions up to and including 2.5.3 set ALLOWEDHOSTS = '' by default, which causes Django to accept any value in the HTTP Host header without validation. The application uses request.buildabsoluteu...