CVE-2021-24221: expresstech quiz and survey master

csirt@kutim:~/threat-intel/cve/CVE-2021-24221

CVSS 8.8 · High EPSS 1,9%

Kerentanan Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') pada expresstech quiz and survey master. Skor CVSS 3.1 8.8 (High) menurut NVD.

Deskripsi (NVD)

The Quiz And Survey Master – Best Quiz, Exam and Survey Plugin for WordPress plugin before 7.1.12 did not sanitise the result_id GET parameter on pages with the [qsm_result] shortcode without id attribute, concatenating it in a SQL statement and leading to an SQL injection. The lowest role allowed to use this shortcode in post or pages being author, such user could gain unauthorised access to the DBMS. If the shortcode (without the id attribute) is embed on a public page or post, then unauthenticated users could exploit the injection.

Rincian

Terbit di NVD: 12 April 2021
Terakhir diubah: 17 Juni 2026
Status NVD: Modified
CVSS 3.1: 8.8 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
EPSS (30 hari): 1,9% peluang dieksploitasi; lebih tinggi dari 79,0% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
expresstech	quiz and survey master	Semua versi sebelum 7.1.12

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://plugins.trac.wordpress.org/changeset/2479603/ patch · advisory pihak ketiga
https://wpscan.com/vulnerability/3b52b25c-82a1-41c7-83ac-92e244f7c5ab exploit · 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.