csirt@kutim:~/threat-intel/cve/CVE-2021-24884

Katalog CVE

CVSS 9.6 · Critical EPSS 3,1%

Kerentanan Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') pada strategy11 formidable form builder. Skor CVSS 3.1 9.6 (Critical) menurut NVD.

Deskripsi (NVD)

The Formidable Form Builder WordPress plugin before 4.09.05 allows to inject certain HTML Tags like <audio>,<video>,<img>,<a> and<button>.This could allow an unauthenticated, remote attacker to exploit a HTML-injection byinjecting a malicous link. The HTML-injection may trick authenticated users to follow the link. If the Link gets clicked, Javascript code can be executed. The vulnerability is due to insufficient sanitization of the "data-frmverify" tag for links in the web-based entry inspection page of affected systems. A successful exploitation incomibantion with CSRF could allow the attacker to perform arbitrary actions on an affected system with the privileges of the user. These actions include stealing the users account by changing their password or allowing attackers to submit their own code through an authenticated user resulting in Remote Code Execution. If an authenticated user who is able to edit Wordpress PHP Code in any kind, clicks the malicious link, PHP code can be edited.

Rincian

Terbit di NVD
25 Oktober 2021
Terakhir diubah
17 Juni 2026
Status NVD
Modified
CVSS 3.1
9.6 (Critical), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H · uraikan di kalkulator
Jenis kelemahan (CWE)
CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-352: Cross-Site Request Forgery (CSRF)
EPSS (30 hari)
3,1% peluang dieksploitasi; lebih tinggi dari 87,5% CVE lain

Produk dan versi terdampak

VendorProdukVersi terdampak
strategy11 formidable form builder Semua versi sebelum 4.09.05

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

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.