CVE-2021-39356: content staging project content staging

csirt@kutim:~/threat-intel/cve/CVE-2021-39356

CVSS 4.8 · Medium EPSS 0,99%

Kerentanan Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') pada content staging project content staging. Skor CVSS 3.1 4.8 (Medium) menurut NVD.

Deskripsi (NVD)

The Content Staging WordPress plugin is vulnerable to Stored Cross-Site Scripting due to insufficient input validation and escaping via several parameters that are echo'd out via the ~/templates/settings.php file which allowed attackers with administrative user access to inject arbitrary web scripts, in versions up to and including 2.0.1. This affects multi-site installations where unfiltered_html is disabled for administrators, and sites where unfiltered_html is disabled.

Rincian

Terbit di NVD: 21 Oktober 2021
Terakhir diubah: 17 Juni 2026
Status NVD: Modified
CVSS 3.1: 4.8 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
EPSS (30 hari): 0,99% peluang dieksploitasi; lebih tinggi dari 61,5% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
content staging project	content staging	Semua versi hingga 2.0.1

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://github.com/BigTiger2020/word-press/blob/main/Content%20Staging.md exploit · advisory pihak ketiga
https://plugins.trac.wordpress.org/browser/content-staging/trunk/templates/settings.php advisory pihak ketiga
https://wordfence.com/vulnerability-advisories/#CVE-2021-39356 advisory pihak ketiga

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.