CVE-2026-39923
NVD: 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. NVD: 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... OSV: Flarum < 1.8.16 Password Reset Token Expiry Bypass via POST /reset
9.2 Severity
CRITICAL EPSS
0.0026 (18) KEV
-
Source-published summary
NVD: 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. NVD: 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... OSV: Flarum < 1.8.16 Password Reset Token Expiry Bypass via POST /reset
Possible impact
Source describes remote exposure · authenticated boundary. Possible impact: This critical severity issue needs human triage to confirm exposure, affected versions, and vendor guidance for remote exposure · authenticated boundary.
Affected context
Affected product or version requires source confirmation.
Remediation / advisory
Remediation reference present; patch status requires confirmation in the linked advisory.
Why it matters
Source describes remote exposure · authenticated boundary. Possible impact: This critical severity issue needs human triage to confirm exposure, affected versions, and vendor guidance for remote exposure · authenticated boundary.; CVSS 9.2 (CRITICAL); EPSS percentile 18; not listed in KEV; Remediation reference present; patch status requires confirmation in the linked advisory; sources: NVD, OSV.
What to verify
Confirm affected product/version, vendor advisory, patch or mitigation, and exposure.
Exposure hint
remote exposure
Impact tags
Urgency reasons
Source-derived note
Summary derived from NVD / OSV description; unsafe procedural detail is not shown.
Redaction metadata
- source summary used
- True
- fallback summary used
- False
- unsafe procedural detail present
- false
- raw source displayed
- false
- public summary redacted
- true
Remediation handoff
Public-safe static handoff for human/Codex remediation planning. Scan, patch, external execution, and auto remediation are disabled.
Safety note
This radar shows source-published defensive context only. Exploit procedures, exploit strings, scanner commands, and auto-remediation are not provided.