csirt@kutim:~/threat-intel/cve/CVE-2026-18110

Katalog CVE

CVSS 7.5 · High EPSS 0,27%

Kerentanan Missing Authorization pada concretecms concrete cms. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

Concrete CMS 9 (9.0.0 through 9.5.2) does not perform an authorization check on the user selector autocomplete endpoint (/ccm/system/user/autocomplete), which backs the "Preview as User" panel and other user-selector components. The endpoint validates only a CSRF-style access token that is bound to the selector's display options rather than to the caller's identity or permissions, and that token is issued to anonymous visitors because the selector renders without an authorization check. Because an empty query resolves to a match-all filter, an unauthenticated attacker can submit an empty search and paginate the results to enumerate every backend account, disclosing the internal user ID, username, and email address of all administrative users, including the super-administrator (user ID 1). No password hashes or session material are disclosed The Concrete CMS security team gave this vulnerability a CVSS v4.0 score of 8.7 with vector CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N. Thanks thirtythree and YesWeHack for reporting.

Rincian

Terbit di NVD
15 September 2026
Terakhir diubah
22 September 2026
Status NVD
Analyzed
CVSS 3.1
7.5 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N · uraikan di kalkulator
Jenis kelemahan (CWE)
CWE-862: Missing Authorization
EPSS (30 hari)
0,27% peluang dieksploitasi; lebih tinggi dari 17,4% CVE lain

Produk dan versi terdampak

VendorProdukVersi terdampak
concretecms concrete cms Versi 9.0.0 hingga sebelum 9.5.3

> Data dari konfigurasi CPE di NVD.

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.