CVE-2026-108109
criticalPHPNuxBill through 2025.3.20 contains an account takeover vulnerability in the customer password reset flow in system/controllers/forgot.php that allows unauth…
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/hotspotbilling/phpnuxbill disclosure@vulncheck.com
- https://github.com/hotspotbilling/phpnuxbill/blob/2025.3.13/system/controllers/forgot.php#... disclosure@vulncheck.com
- https://github.com/hotspotbilling/phpnuxbill/commit/c3c2a92d468af91136d747b75142ed72f10320... disclosure@vulncheck.com
- https://github.com/hotspotbilling/phpnuxbill/security/advisories/GHSA-337r-rrrc-r559 disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/phpnuxbill-through-2025.3.20-account-takeover-via-bru... disclosure@vulncheck.com
- https://github.com/hotspotbilling/phpnuxbill/security/advisories/GHSA-337r-rrrc-r559 134c704f-9b21-4f2e-91b3-4a467353bcc0