csirt@kutim:~/threat-intel/cve/CVE-2021-37334

Katalog CVE

CVSS 9.8 · Critical EPSS 2,7%

Kerentanan pada umbraco forms. Skor CVSS 3.1 9.8 (Critical) menurut NVD.

Deskripsi (NVD)

Umbraco Forms version 4.0.0 up to and including 8.7.5 and below are vulnerable to a security flaw that could lead to a remote code execution attack and/or arbitrary file deletion. A vulnerability occurs because validation of the file extension is performed after the file has been stored in a temporary directory. By default, files are stored within the application directory structure at %BASEDIR%/APP_DATA/TEMP/FileUploads/. Whilst access to this directory is restricted by the root web.config file, it is possible to override this restriction by uploading another specially crafted web.config file to the temporary directory. It is possible to exploit this flaw to upload a malicious script file to execute arbitrary code and system commands on the server.

Rincian

Terbit di NVD
25 Agustus 2021
Terakhir diubah
17 Juni 2026
Status NVD
Modified
CVSS 3.1
9.8 (Critical), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator
EPSS (30 hari)
2,7% peluang dieksploitasi; lebih tinggi dari 85,8% CVE lain

Produk dan versi terdampak

VendorProdukVersi terdampak
umbraco forms Versi 4.0.0 hingga sebelum 4.4.9
umbraco forms Versi 6.0.0 hingga sebelum 6.0.10
umbraco forms Versi 7.0.0 hingga sebelum 7.0.7
umbraco forms Versi 7.1.0 hingga sebelum 7.1.4
umbraco forms Versi 7.2.0 hingga sebelum 7.2.1
umbraco forms Versi 7.3.0 hingga sebelum 7.3.2
umbraco forms Versi 7.4.0 hingga sebelum 7.4.3
umbraco forms Versi 7.5.0 hingga sebelum 7.5.4
umbraco forms Versi 8.0.0 hingga sebelum 8.0.2
umbraco forms Versi 8.1.0 hingga sebelum 8.1.6
umbraco forms Versi 8.2.0 hingga sebelum 8.2.3
umbraco forms Versi 8.3.0 hingga sebelum 8.3.4
umbraco forms Versi 8.4.0 hingga sebelum 8.4.4
umbraco forms Versi 8.5.0 hingga sebelum 8.5.7
umbraco forms Versi 8.6.0 hingga sebelum 8.6.2
umbraco forms Versi 8.7.0 hingga sebelum 8.7.6

> 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, 20:10 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.