High severity7.5NVD Advisory· Published Aug 25, 2026

CVE-2026-56709

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Getgrav/Gravllm-fuzzy
Range: <3.9.2

Patches

Vulnerability mechanics

References

github.com/getgrav/grav/security/advisories/GHSA-69vf-mjxw-x79jnvd
www.vulncheck.com/advisories/grav-before-host-header-injection-via-sendinvitationemailnvd

News mentions

No linked articles in our index yet.

cvss	0.488
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000