CVE-2026-86196

Grav API Plugin before 1.0.20 Authentication Bypass via Host Header

Published Sep 5, 2026 CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Description
Grav API plugin versions before 1.0.20 build password reset links from the untrusted Host header in the forgot-password endpoint, allowing unauthenticated attackers to redirect reset tokens to attacker-controlled domains. Attackers can send password reset requests for any account with a malicious Host header, intercept the reset token from victim emails, and complete account takeover including super-admin accounts.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Getgrav grav-plugin-api
Vendors & Products Getgrav grav-plugin-api
Type Values Removed Values Added
Description Grav API plugin versions before 1.0.20 build password reset links from the untrusted Host header in the forgot-password endpoint, allowing unauthenticated attackers to redirect reset tokens to attacker-controlled domains. Attackers can send password reset requests for any account with a malicious Host header, intercept the reset token from victim emails, and complete account takeover including super-admin accounts.
Title Grav API Plugin before 1.0.20 Authentication Bypass via Host Header
First Time appeared Getgrav
Getgrav grav
Weaknesses CWE-290
CPEs cpe:2.3:a:getgrav:grav:*:*:*:*:*:*:*:*
Vendors & Products Getgrav
Getgrav grav
References
Metrics cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Sep 8, 2026, 5:18 PM
Reserved
Sep 5, 2026, 11:52 AM
Status
Deferred
Published
Sep 5, 2026, 1:18 PM
Modified
Sep 8, 2026, 8:05 PM