CVE-2026-39923 — Flarum < 1.8.16 Password Reset Token Expiry Bypass via POST /reset
Flarum before 1.8.16 contains a password reset token expiry bypass vulnerability that allows unauthenticated attackers to reuse expired password reset tokens by submitting them …
Published: 2026-08-05 · CVSS: 9.2 · CVSS 4.0
Flarum before 1.8.16 contains a password reset token expiry bypass vulnerability that allows unauthenticated attackers to reuse expired password reset tokens by submitting them directly to the reset processing endpoint. The SavePasswordController::handle() method calls PasswordToken::findOrFail() without performing any expiry validation, allowing attackers to bypass the 24-hour token lifetime enforced only during form rendering and change any account's password to gain an authenticated session.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7