CVE-2026-56709

Grav before 3.9.2 is vulnerable to a Host header injection in the sendInvitationEmail() function. When constructing token-bearing invitation links, the unvalidated Host header allows an attacker to poison the link and redirect users to an attacker-controlled domain . This bypasses the require_tru...

CVE-2026-56709 Grav before 3.9.2 Host Header Injection via sendInvitationEmail

Grav before 3.9.2 fails to validate untrusted Host headers in the sendInvitationEmail function when constructing token-bearing invitation links. Attackers can manipulate the Host header to poison invitation links and redirect users to attacker-controlled domains, bypassing the requiretrustedhost...

EUVD-2026-65207

Grav before 3.9.2 fails to validate untrusted Host headers in the sendInvitationEmail function when constructing token-bearing invitation links. Attackers can manipulate the Host header to poison invitation links and redirect users to attacker-controlled domains, bypassing the requiretrustedhost...