CVE-2026-86196
Grav API Plugin before 1.0.20 Authentication Bypass via Host Header
- State
- Published
- Severity
- 8.7 High
- Published
- Sep 5, 2026
- Updated
- Sep 8, 2026
- Reserved
- Sep 5, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | 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 | VulnCheck |
Weaknesses
- CWE-290 Authentication Bypass by Spoofing
Affected Products
| Product | Versions |
|---|---|
grav-plugin-apigetgrav |
|
References
- GitHub Security Advisory (GHSA-262p-56vv-7v5r)vendor-advisory
- VulnCheck Advisory: Grav API Plugin before 1.0.20 Authentication Bypass via Host Headerthird-party-advisory
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