CVE-2021-21247

Katalog CVE

CVSS 8.8 · High EPSS 1,5%

Kerentanan Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') pada onedev project onedev. Skor CVSS 3.1 8.8 (High) menurut NVD.

Deskripsi (NVD)

OneDev is an all-in-one devops platform. In OneDev before version 4.0.3, the application's BasePage registers an AJAX event listener (`AbstractPostAjaxBehavior`) in all pages other than the login page. This listener decodes and deserializes the `data` query parameter. We can access this listener by submitting a POST request to any page. This issue may lead to `post-auth RCE` This endpoint is subject to authentication and, therefore, requires a valid user to carry on the attack. This issue was addressed in 4.0.3 by encrypting serialization payload with secrets only known to server.

Rincian

Terbit di NVD

15 Januari 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:L/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CWE-502: Deserialization of Untrusted Data

EPSS (30 hari)

1,5% peluang dieksploitasi; lebih tinggi dari 73,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/theonedev/onedev/security/advisories/GHSA-6pxf-75cf-vwjp advisory pihak ketiga