Description
PHPNuxBill through 2025.3.20 contains an authentication bypass vulnerability in RADIUS CHAP verification because Password::chap_verify() returns true when the supplied response does not match. Attackers who know a valid customer or PPPoE username can log in through MikroTik hotspot or PPPoE CHAP with any incorrect password to obtain network access and consume that customer's plan.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
hotspotbilling phpnuxbill
Default version status: unaffected
0 to ≤ 2025.3.20affected
References
- https://github.com/hotspotbilling/phpnuxbill/security/advisories/GHSA-6f62-x25v-9686 ↗
- https://github.com/hotspotbilling/phpnuxbill/blob/2025.3.13/system/autoload/Password.php#L48 ↗
- https://github.com/hotspotbilling/phpnuxbill ↗
- https://www.vulncheck.com/advisories/phpnuxbill-through-2025.3.20-chap-authentication-bypass-via-password-chap-verify ↗