CVE-2026-108109

CriticalCVSS 9.1/10Last modified Oct 9, 2026

Description

PHPNuxBill through 2025.3.20 contains an account takeover vulnerability in the customer password reset flow in system/controllers/forgot.php that allows unauthenticated attackers to brute-force the 6-digit otp_code. Attackers knowing a customer username can guess the code without attempt limits or lockout, then read the newly set password from the HTTP response to hijack the account.

Metrics

CVSS 3.1 9.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Oct 9, 2026
Last modified
Oct 9, 2026
NVD status
Deferred

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CVE-2026-108109: Critical severity, CVSS 9.1 | Vulnix