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Case File

CVE-2024-4023

HIGH · CVSS 8.1 EPSS 0.75% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2025-03-20 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 8.1. It affects Java. Public exploit code or proof-of-concept references have been detected in its references.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2024-4023
Severity
HIGH
CVSS
8.1
EPSS
0.75%
Java

Original NVD 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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)