🛡️ CVE-2024-4023
🟠 CVSS 8.1 — High ⚠️ Exploit Public CWE-79 NVD
8.1
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

A stored cross-site scripting (XSS) vulnerability exists in flatpressblog/flatpress version 1.3. When a user uploads a file with a `.xsig` extension and directly accesses this file, the server responds with a Content-type of application/octet-stream, leading to the file being processed as an HTML file. This allows an attacker to execute arbitrary JavaScript code, which can be used to steal user cookies, perform HTTP requests, and access content of the same origin.

Details

Severity HIGH
CVSS Score 8.1
CVSS Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
CWE CWE-79
Public Exploit ⚠️ Yes
Source NVD
Published 2025-03-20
Updated 2026-06-02
Modified 2025-06-23

Affected Packages

Software From version Fixed in
flatpress

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