csirt@kutim:~/threat-intel/cve/CVE-2026-33543

Katalog CVE

CVSS 9.3 · Critical EPSS 0,45%

Kerentanan Authentication Bypass Using an Alternate Path or Channel. Skor CVSS 4.0 9.3 (Critical) menurut github.com.

Deskripsi (NVD)

FOSSBilling is a free, open-source billing and client management system. Versions 0.7.2 and prior expose a guest API endpoint, /api/guest/staff/create, intended for initial administrator bootstrap. Due to a flawed admin-existence check, the endpoint remains usable after an administrator already exists. The flawed guard check uses is_countable() on a value that returns a Model_Admin object or null rather than a countable type, causing the expression to always evaluate as true and bypass the intended protection. As a result, an attacker can reach the unprotected endpoint to create a new administrator account and immediately authenticate, gaining a fully privileged admin session even when an admin already exists. This issue has been fixed in version 0.8.0.

Rincian

Terbit di NVD
24 Juni 2026
Terakhir diubah
25 Juni 2026
Status NVD
Deferred
CVSS 4.0
9.3 (Critical), sumber github.com
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X · uraikan di kalkulator
Jenis kelemahan (CWE)
CWE-288: Authentication Bypass Using an Alternate Path or Channel
CWE-306: Missing Authentication for Critical Function
EPSS (30 hari)
0,45% peluang dieksploitasi; lebih tinggi dari 37,1% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:11 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.