CVE-2026-108108CWE-287

CVE-2026-108108

High · published October 9, 2026

CVSS v3.1
7.1
EPSS
0%
Percentile
13.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.1 · HIGH
Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
CVSS v4.0
7.1 · CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N
EPSS
0.00229 · 13.0th percentile
Weakness
CWE-287 · Improper Authentication
Published
2026-10-09T19:17Z
References (5)
https://github.com/hotspotbilling/phpnuxbill · [email protected]https://github.com/hotspotbilling/phpnuxbill/blob/2025.3.13/system/autoload/Password.php#L48 · [email protected]https://github.com/hotspotbilling/phpnuxbill/security/advisories/GHSA-6f62-x25v-9686 · [email protected]https://www.vulncheck.com/advisories/phpnuxbill-through-2025.3.20-chap-authentication-bypass-via-password-chap-verify · [email protected]https://github.com/hotspotbilling/phpnuxbill/security/advisories/GHSA-6f62-x25v-9686 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 11 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 09 OCT 14:33Z
    PHPNuxBill through 2025.3.20 CHAP Authentication Bypass via Password::chap_verify()
    cvelistv5
  • 09 OCT 14:33Z
    PHPNuxBill through 2025.3.20 CHAP Authentication Bypass via Password::chap_verify()
    cvelistv5