CVE-2026-108108
highPHPNuxBill through 2025.3.20 contains an authentication bypass vulnerability in RADIUS CHAP verification because Password::chap_verify() returns true when the…
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.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/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/autoload/Password.php#L... disclosure@vulncheck.com
- https://github.com/hotspotbilling/phpnuxbill/security/advisories/GHSA-6f62-x25v-9686 disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/phpnuxbill-through-2025.3.20-chap-authentication-bypa... disclosure@vulncheck.com
- https://github.com/hotspotbilling/phpnuxbill/security/advisories/GHSA-6f62-x25v-9686 134c704f-9b21-4f2e-91b3-4a467353bcc0