CVE-2021-4252: wp-ban project wp-ban

csirt@kutim:~/threat-intel/cve/CVE-2021-4252

CVSS 6.1 · Medium EPSS 0,48%

Kerentanan Improper Neutralization pada wp-ban project wp-ban. Skor CVSS 3.1 6.1 (Medium) menurut NVD.

Deskripsi (NVD)

A vulnerability, which was classified as problematic, has been found in WP-Ban. This issue affects the function toggle_checkbox of the file ban-options.php. The manipulation of the argument $_SERVER["HTTP_USER_AGENT"] leads to cross site scripting. The attack may be initiated remotely. The name of the patch is 13e0b1e922f3aaa3f8fcb1dd6d50200dd693fd76. It is recommended to apply a patch to fix this issue. The identifier VDB-216209 was assigned to this vulnerability.

Rincian

Terbit di NVD: 18 Desember 2022
Terakhir diubah: 17 Juni 2026
Status NVD: Modified
CVSS 3.1: 6.1 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-707: Improper Neutralization
EPSS (30 hari): 0,48% peluang dieksploitasi; lebih tinggi dari 39,6% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
wp-ban project	wp-ban	Semua versi sebelum 2021-11-24

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://github.com/lesterchan/wp-ban/commit/13e0b1e922f3aaa3f8fcb1dd6d50200dd693fd76 patch · advisory pihak ketiga
https://github.com/lesterchan/wp-ban/pull/11 patch · advisory pihak ketiga
https://vuldb.com/?id.216209 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.