csirt@kutim:~/threat-intel/cve/CVE-2021-39197

Katalog CVE

CVSS 8.8 · High EPSS 0,64%

Kerentanan Cross-Site Request Forgery (CSRF) pada better errors project better errors. Skor CVSS 3.1 8.8 (High) menurut NVD.

Deskripsi (NVD)

better_errors is an open source replacement for the standard Rails error page with more information rich error pages. It is also usable outside of Rails in any Rack app as Rack middleware. better_errors prior to 2.8.0 did not implement CSRF protection for its internal requests. It also did not enforce the correct "Content-Type" header for these requests, which allowed a cross-origin "simple request" to be made without CORS protection. These together left an application with better_errors enabled open to cross-origin attacks. As a developer tool, better_errors documentation strongly recommends addition only to the `development` bundle group, so this vulnerability should only affect development environments. Please ensure that your project limits better_errors to the `development` group (or the non-Rails equivalent). Starting with release 2.8.x, CSRF protection is enforced. It is recommended that you upgrade to the latest release, or minimally to "~> 2.8.3". There are no known workarounds to mitigate the risk of using older releases of better_errors.

Rincian

Terbit di NVD
7 September 2021
Terakhir diubah
17 Juni 2026
Status NVD
Modified
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)
EPSS (30 hari)
0,64% peluang dieksploitasi; lebih tinggi dari 49,3% CVE lain

Produk dan versi terdampak

VendorProdukVersi terdampak
better errors project better errors Semua versi sebelum 2.8.0

> 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.