PT-2026-43267

e107 is a content management system CMS. Prior to 2.3.4, a Host Header Injection vulnerability in the password reset page allows attackers to manipulate the Host header to generate password reset links pointing to attacker-controlled domains. This can lead to phishing attacks, account takeover, o...

GHSA-7GM6-W7MX-58CR phpBB has Password Reset Link Poisoning via Host Header injection

phpBB before 3.3.16 is vulnerable to Host Header Injection that can lead to password rest link poisoning. When forceservervars is disabled, the servers hostname may be extracted from the HTTP Host header which is used to generate the password reset link URL. An attacker who can manipulate the Hos...

CVE-2026-29199

phpBB before 3.3.16 is vulnerable to Host Header Injection that can lead to password rest link poisoning. When forceservervars is disabled, the servers hostname may be extracted from the HTTP Host header which is used to generate the password reset link URL. An attacker who can manipulate the Hos...

CVE-2026-29199

phpBB before 3.3.16 is vulnerable to Host Header Injection that can lead to password rest link poisoning. When forceservervars is disabled, the servers hostname may be extracted from the HTTP Host header which is used to generate the password reset link URL. An attacker who can manipulate the Hos...

CVE-2026-29199

phpBB before 3.3.16 is vulnerable to Host Header Injection that can lead to password rest link poisoning. When forceservervars is disabled, the servers hostname may be extracted from the HTTP Host header which is used to generate the password reset link URL. An attacker who can manipulate the Hos...

CVE-2026-29199

phpBB before 3.3.16 is vulnerable to Host Header Injection that can lead to password rest link poisoning. When forceservervars is disabled, the servers hostname may be extracted from the HTTP Host header which is used to generate the password reset link URL. An attacker who can manipulate the Hos...

CVE-2026-29199

CVE-2026-29199 affects phpBB prior to 3.3.16. The issue is a Host Header Injection in which, when force_server_vars is disabled, the server hostname is sourced from the HTTP Host header to build the password reset URL. An attacker who can control or influence the Host header can cause password re...

EUVD-2026-26892

phpBB before 3.3.16 is vulnerable to Host Header Injection that can lead to password rest link poisoning. When forceservervars is disabled, the servers hostname may be extracted from the HTTP Host header which is used to generate the password reset link URL. An attacker who can manipulate the Hos...

PT-2026-36770

Name of the Vulnerable Software and Affected Versions phpBB versions prior to 3.3.16 Description Host Header Injection occurs when force server vars is disabled, allowing the server's hostname to be extracted from the HTTP Host header to generate password reset link URLs. An attacker capable of...

phpBB 授权问题漏洞

phpBB is a set of web forum software developed by Ariefibis. Versions prior to phpBB 3.3.16 had authorization-related vulnerabilities. This vulnerability stemmed from host header injection, which could lead to malicious password reset links. When forceservervars is disabled, the server’s hostname...

Exploit for Origin Validation Error in Apache Airflow_Providers_Amazon

CVE-2026-25604 PoC Host Header Injection leading to SAML au...

CVE-2026-39971 Serendipity: Host Header Injection leads to SMTP header injection via unvalidated HTTP_HOST

Serendipity is a PHP-powered weblog engine. In versions 2.6-beta2 and below, the email sending functionality in include/functions.inc.php inserts $SERVER'HTTPHOST' directly into the Message-ID SMTP header without validation, and the existing sanitization function serendipityisResponseClean is not...

CVE-2026-39971 Serendipity: Host Header Injection leads to SMTP header injection via unvalidated HTTP_HOST

Serendipity is a PHP-powered weblog engine. In versions 2.6-beta2 and below, the email sending functionality in include/functions.inc.php inserts $SERVER'HTTPHOST' directly into the Message-ID SMTP header without validation, and the existing sanitization function serendipityisResponseClean is not...

EUVD-2026-22811

Serendipity has a Host Header Injection allows SMTP header injection via unvalidated HTTPHOST in Message-ID email header...

GHSA-458G-Q4FH-MJ6R Serendipity has a Host Header Injection allows SMTP header injection via unvalidated HTTP_HOST in Message-ID email header

Summary Serendipity inserts $SERVER'HTTPHOST' directly into the Message-ID SMTP header without any validation beyond CRLF stripping. An attacker who can control the Host header during an email-triggering action can inject arbitrary SMTP headers into outgoing emails, enabling spam relay, BCC...

Serendipity has a Host Header Injection allows SMTP header injection via unvalidated HTTP_HOST in Message-ID email header

Summary Serendipity inserts $SERVER'HTTPHOST' directly into the Message-ID SMTP header without any validation beyond CRLF stripping. An attacker who can control the Host header during an email-triggering action can inject arbitrary SMTP headers into outgoing emails, enabling spam relay, BCC...

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...

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...

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,...