CVE-2021-24153: yoast seo

csirt@kutim:~/threat-intel/cve/CVE-2021-24153

CVSS 5.4 · Medium EPSS 1,1%

Kerentanan Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') pada yoast seo. Skor CVSS 3.1 5.4 (Medium) menurut NVD.

Deskripsi (NVD)

A Stored Cross-Site Scripting vulnerability was discovered in the Yoast SEO WordPress plugin before 3.4.1, which had built-in blacklist filters which were blacklisting Parenthesis as well as several functions such as alert but bypasses were found.

Rincian

Terbit di NVD: 5 April 2021
Terakhir diubah: 17 Juni 2026
Status NVD: Modified
CVSS 3.1: 5.4 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:L/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): 1,1% peluang dieksploitasi; lebih tinggi dari 65,1% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
yoast	yoast seo	Semua versi sebelum 3.4.1

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://packetstormsecurity.com/files/138192/ exploit · advisory pihak ketiga · vdb entry
https://plugins.trac.wordpress.org/changeset/1466243/wordpress-seo advisory pihak ketiga
https://wpscan.com/vulnerability/77810044-394d-4314-b9a1-20c7dca726dc 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.