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Advisories

Grav before 3.9.2 Host Header Injection via sendInvitationEmail

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severity
high
date
Affecting

  • grav >= 0, < 3.9.2

CWE
  • CWE-350 Reliance on Reverse DNS Resolution for a Security-Critical Action
CVSS
8.7
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Credit
alham-rizvi
Description
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 require_trusted_host protection which only covers password reset flows.

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