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.
Metrics
Affected Vendors & Products
References
History
Thu, 27 Aug 2026 06:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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Tue, 25 Aug 2026 02:00:00 +0000
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| 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. | |
| Title | Grav before 3.9.2 Host Header Injection via sendInvitationEmail | |
| First Time appeared |
Getgrav
Getgrav grav |
|
| Weaknesses | CWE-350 | |
| CPEs | cpe:2.3:a:getgrav:grav:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Getgrav
Getgrav grav |
|
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-08-25T01:30:10.057Z
Updated: 2026-08-26T16:12:46.333Z
Reserved: 2026-06-22T18:48:27.060Z
Link: CVE-2026-56709
Updated: 2026-08-26T15:58:35.771Z
Status : Deferred
Published: 2026-08-25T02:16:42.930
Modified: 2026-08-31T20:38:54.340
Link: CVE-2026-56709
No data.