CVE-2026-39923
Flarum before 1.8.16 contains a password reset token expiry bypass vulnerability that allows unauthenticated attackers to reuse expired pass
CVSS
8.1
Alto
EPSS
0.4%
p37
KEV
—
Exploit Today
11
0-100
Publicado: 5 ago 2026 · Última mod.: 23 oct 2026 · CWE-324
0.4%EPSS · 30 días0.4%
2026-09-282026-10-26
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.
- github.comhttps://github.com/flarum/framework/commit/2803058d0f9dc38252326070b46d4484fe5a857d
- github.comhttps://github.com/flarum/framework/pull/4545
- github.comhttps://github.com/flarum/framework/releases/tag/v1.8.16
- www.vulncheck.comhttps://www.vulncheck.com/advisories/flarum-password-reset-token-expiry-bypass-via-post-reset
CVECVSSEPSSKEVRExplotTítuloVis.
CVE-2026-547873.1 BAJ2.9%
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