CVE-2021-24559: patrickposner qyrr

csirt@kutim:~/threat-intel/cve/CVE-2021-24559

CVSS 5.4 · Medium EPSS 0,22%

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

Deskripsi (NVD)

The Qyrr WordPress plugin before 0.7 does not escape the data-uri of the QR Code when outputting it in a src attribute, allowing for Cross-Site Scripting attacks. Furthermore, the data_uri_to_meta AJAX action, available to all authenticated users, only had a CSRF check in place, with the nonce available to users with a role as low as Contributor allowing any user with such role (and above) to set a malicious data-uri in arbitrary QR Code posts, leading to a Stored Cross-Site Scripting issue.

Rincian

Terbit di NVD: 16 Januari 2024
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): 0,22% peluang dieksploitasi; lebih tinggi dari 11,3% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
patrickposner	qyrr	Semua versi sebelum 0.7

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://wpscan.com/vulnerability/65a29976-163a-4bbf-a4e8-590ddc4b83f2/ 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.