CVE-2026-81913: concretecms concrete cms

csirt@kutim:~/threat-intel/cve/CVE-2026-81913

CVSS 6.1 · Medium EPSS 0,29%

Kerentanan URL Redirection to Untrusted Site ('Open Redirect') pada concretecms concrete cms. Skor CVSS 3.1 6.1 (Medium) menurut NVD.

Deskripsi (NVD)

Concrete CMS versions 9.5.0 through 9.5.2 are vulnerable to Open Redirect via the rcURL parameter. An attacker can craft a single link on the site's own domain that sends a user to an arbitrary external site immediately after authentication, facilitating phishing and credential theft. The same handling is present in the registration flow, giving a second entry point on sites with registration enabled. Concrete CMS versions prior to 9.5.0 do not include the rcURL parameter or this allowlist and are not affected. The Concrete CMS security team gave this vulnerability a CVSS v4.0 score of 5.3 with vector CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N. Thanks Michal M. for reporting.

Rincian

Terbit di NVD: 11 September 2026
Terakhir diubah: 24 September 2026
Status NVD: Analyzed
CVSS 3.1: 6.1 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-601: URL Redirection to Untrusted Site ('Open Redirect')
EPSS (30 hari): 0,29% peluang dieksploitasi; lebih tinggi dari 20,0% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
concretecms	concrete cms	Versi 9.5.0 hingga sebelum 9.5.3

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://documentation.concretecms.org/developers/introduction/version-history/953-release-notes broken link

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.