CVE-2020-21524

Katalog CVE

CVSS 9.1 · Critical EPSS 1,5%

Kerentanan Improper Restriction of XML External Entity Reference pada halo. Skor CVSS 3.1 9.1 (Critical) menurut NVD.

Deskripsi (NVD)

There is a XML external entity (XXE) vulnerability in halo v1.1.3, The function of importing other blogs in the background(/api/admin/migrations/wordpress) needs to parse the xml file, but it is not used for security defense, This vulnerability can detect the intranet, read files, enable ddos attacks, etc. exp:https://github.com/halo-dev/halo/issues/423

Rincian

Terbit di NVD

30 September 2020

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-611: Improper Restriction of XML External Entity Reference

EPSS (30 hari)

1,5% peluang dieksploitasi; lebih tinggi dari 73,7% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/halo-dev/halo/issues/423 exploit · issue tracking · advisory pihak ketiga