CVE-2021-23838

Katalog CVE

CVSS 4.8 · Medium EPSS 0,99%

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

Deskripsi (NVD)

An issue was discovered in flatCore before 2.0.0 build 139. A reflected XSS vulnerability was identified in the media_filter HTTP request body parameter for the acp interface. The affected parameter accepts malicious client-side script without proper input sanitization. For example, a malicious user can leverage this vulnerability to steal cookies from a victim user and perform a session-hijacking attack, which may then lead to unauthorized access to the site.

Rincian

Terbit di NVD

15 Januari 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)

0,99% peluang dieksploitasi; lebih tinggi dari 61,6% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• http://packetstormsecurity.com/files/160936/flatCore-CMS-XSS-File-Disclosure-SQL-Injection.html exploit · advisory pihak ketiga · vdb entry
• https://github.com/flatCore/flatCore-CMS product · advisory pihak ketiga
• https://sec-consult.com/vulnerability-lab/ advisory pihak ketiga