CVE-2026-108108PHPNuxBill through 2025.3.20 CHAP Authentication Bypass via Password::chap_verify()
Updated under an hour ago ()
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It affects hotspotbilling phpnuxbill. Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 0.23%, higher than 13% of scored CVEs.
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Free account, 1 product
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
- 7.1 HIGH (v3.1, CNA)CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
- Weakness (CWE)
- CWE-287
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 0.23% (percentile 13)
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Oct 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
hotspotbilling phpnuxbill hotspotbilling:phpnuxbill (from the name) | through 2025.3.20 | CNA record |
References
- https://github.com/hotspotbilling/phpnuxbill/security/advisories/GHSA-6f62-x25v-9686vendor-advisory
- https://github.com/hotspotbilling/phpnuxbill/blob/2025.3.13/system/autoload/Password.php#L48technical-description
- https://github.com/hotspotbilling/phpnuxbillproduct
- https://www.vulncheck.com/advisories/phpnuxbill-through-2025.3.20-chap-authentication-bypass-via-password-chap-verifythird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.