CVE-2021-22969: concretecms concrete cms

csirt@kutim:~/threat-intel/cve/CVE-2021-22969

CVSS 5.3 · Medium EPSS 0,86%

Kerentanan Server-Side Request Forgery (SSRF) pada concretecms concrete cms. Skor CVSS 3.1 5.3 (Medium) menurut NVD.

Deskripsi (NVD)

Concrete CMS (formerly concrete5) versions below 8.5.7 has a SSRF mitigation bypass using DNS Rebind attack giving an attacker the ability to fetch cloud IAAS (ex AWS) IAM keys.To fix this Concrete CMS no longer allows downloads from the local network and specifies the validated IP when downloading rather than relying on DNS.Discoverer: Adrian Tiron from FORTBRIDGE ( https://www.fortbridge.co.uk/ )The Concrete CMS team gave this a CVSS 3.1 score of 3.5 AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N . Please note that Cloud IAAS provider mis-configurations are not Concrete CMS vulnerabilities. A mitigation for this vulnerability is to make sure that the IMDS configurations are according to a cloud provider's best practices.This fix is also in Concrete version 9.0.0

Rincian

Terbit di NVD: 19 November 2021
Terakhir diubah: 17 Juni 2026
Status NVD: Modified
CVSS 3.1: 5.3 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-918: Server-Side Request Forgery (SSRF)
EPSS (30 hari): 0,86% peluang dieksploitasi; lebih tinggi dari 57,3% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
concretecms	concrete cms	Semua versi sebelum 8.5.7

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://documentation.concretecms.org/developers/introduction/version-history/857-release-notes release notes · advisory vendor
https://hackerone.com/reports/1369312 permissions required

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:10 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.