csirt@kutim:~/threat-intel/cve/CVE-2026-8428

Katalog CVE

CVSS 8.8 · High EPSS 0,19%

Kerentanan Cross-Site Request Forgery (CSRF) pada concretecms concrete cms. Skor CVSS 3.1 8.8 (High) menurut NVD.

Deskripsi (NVD)

Concrete CMS 9.5.0 and below emits a CSRF token in the local_available_update.php view ($token->output('do_update')) but the corresponding do_update() method in concrete/controllers/single_page/dashboard/system/update/update.php never calls $this->token->validate('do_update'). The form is rendered as a POST form, meaning the token reaches the browser, but because the controller discards it without verification, an attacker can craft a cross-site POST that triggers a core CMS update to an attacker-specified version string.  In order to be vulnerable, theictim must be passing canUpgrade()anda valid update version must be present under DIR_CORE_UPDATES. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 7.5 with vector CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N. Thanks https://github.com/maru1009 for reporting.

Rincian

Terbit di NVD
21 Mei 2026
Terakhir diubah
23 Juli 2026
Status NVD
Analyzed
CVSS 3.1
8.8 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H · uraikan di kalkulator
Jenis kelemahan (CWE)
CWE-352: Cross-Site Request Forgery (CSRF)
CWE-829: Inclusion of Functionality from Untrusted Control Sphere
EPSS (30 hari)
0,19% peluang dieksploitasi; lebih tinggi dari 7,7% CVE lain

Produk dan versi terdampak

VendorProdukVersi terdampak
concretecms concrete cms Semua versi sebelum 9.5.1

> 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.