CVE-2026-50194

Steeltoe CVE-2026-50194 affects management endpoints when configured to listen on an alternate port. Versions 3.2.2–3.3.0 and 4.1.0 use the Host header to gate access instead of the socket port, enabling port-isolation bypass. Patches are in 3.4.0 and 4.2.0. If upgrading isn’t possible, apply exp...

CVE-2026-50635

LimeSurvey constructs account password-reset links from the client-supplied HTTP Host header without validating it. The optional allowedHosts allowlist that would constrain this is undefined in the default and documented configuration, so LSHttpRequest::checkIsAllowedHost results in no operation....

PT-2026-48152

LimeSurvey constructs account password-reset links from the client-supplied HTTP Host header without validating it. The optional allowedHosts allowlist that would constrain this is undefined in the default and documented configuration, so LSHttpRequest::checkIsAllowedHost results in no operation....

EUVD-2025-208327

A host header injection vulnerability in the mailer component of @perfood/couch-auth v0.26.0 allows attackers to obtain reset tokens and execute an account takeover via spoofing the HTTP Host header...

CVE-2025-70948

A host header injection vulnerability in the mailer component of @perfood/couch-auth v0.26.0 allows attackers to obtain reset tokens and execute an account takeover via spoofing the HTTP Host header...

WordPress PHPMailer Host Header Command Injection Exploit

This Metasploit module exploits a command injection vulnerability in WordPress version 4.6 with Exim as an MTA via a spoofed Host header to PHPMailer, a mail-sending library that is bundled with WordPress. A valid WordPress username is required to exploit the vulnerability. Additionally, due to t...