CVE-2026-108108

PHPNuxBill through 2025.3.20 CHAP Authentication Bypass via Password::chap_verify()

HIGH
7.1
CVSS Score
Published: October 9, 2026 at 02:33 PM UTC
Updated: October 14, 2026 at 02:16 AM UTC
1 product affected across 1 vendorPhpnuxbill

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Severity
HIGH7.1
Exploit prediction
EPSS 0.3%
SSVC
PoC

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.1HIGHVulnCheck
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-287

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