CVE-2021-39349: author bio box project author bio box

csirt@kutim:~/threat-intel/cve/CVE-2021-39349

CVSS 4.8 · Medium EPSS 1,1%

Kerentanan Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') pada author bio box project author bio box. Skor CVSS 3.1 4.8 (Medium) menurut NVD.

Deskripsi (NVD)

The Author Bio Box WordPress plugin is vulnerable to Stored Cross-Site Scripting due to insufficient input validation and sanitization via several parameters found in the ~/includes/admin/class-author-bio-box-admin.php file which allowed attackers with administrative user access to inject arbitrary web scripts, in versions up to and including 3.3.1. This affects multi-site installations where unfiltered_html is disabled for administrators, and sites where unfiltered_html is disabled.

Rincian

Terbit di NVD: 15 Oktober 2021
Terakhir diubah: 17 Juni 2026
Status NVD: Modified
CVSS 3.1: 4.8 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:H/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 65,6% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
author bio box project	author bio box	Semua versi hingga 3.3.1

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://plugins.trac.wordpress.org/changeset/2613798/author-bio-box/tags/3.3.2/includes/admin/class-author-bio... patch · advisory pihak ketiga
https://github.com/BigTiger2020/word-press/blob/main/Author%20Bio%20Box.md exploit · advisory pihak ketiga
https://www.wordfence.com/vulnerability-advisories/#CVE-2021-39349 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.