CVE-2021-32660

Katalog CVE

CVSS 8.1 · High EPSS 1,3%

Kerentanan Improper Neutralization of Special Elements used in a Command ('Command Injection') pada linuxfoundation @backstage/techdocs-common. Skor CVSS 3.1 8.1 (High) menurut NVD.

Deskripsi (NVD)

Backstage is an open platform for building developer portals, and techdocs-common contains common functionalities for Backstage's TechDocs. In versions of `@backstage/tehdocs-common` prior to 0.6.4, a malicious internal actor is able to upload documentation content with malicious scripts. These scripts would normally be sanitized by the TechDocs frontend, but by tricking a user to visit the content via the TechDocs API, the content sanitazion will be bypassed. If the TechDocs API is hosted on the same origin as the Backstage app or other backend plugins, this may give access to sensitive data. The ability to upload malicious content may be limited by internal code review processes, unless the chosen TechDocs deployment method is to use an object store and the actor has access to upload files directly to that store. The vulnerability is patched in the `0.6.4` release of `@backstage/techdocs-common`.

Rincian

Terbit di NVD

3 Juni 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

8.1 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')
CWE-434: Unrestricted Upload of File with Dangerous Type

EPSS (30 hari)

1,3% peluang dieksploitasi; lebih tinggi dari 69,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/backstage/backstage/commit/aad98c544e59369901fe9e0a85f6357644dceb5c patch · advisory pihak ketiga
• https://github.com/backstage/backstage/releases/tag/release-2021-06-03 patch · advisory pihak ketiga
• https://github.com/backstage/backstage/security/advisories/GHSA-pwhf-39xg-4rxw advisory pihak ketiga