PT-2025-39658

CVE-2025-59843

Published

2025-09-26

Updated

2026-10-09

Description by

CVSS 4.0

6.9

Medium

MetricsAV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions Flag Forge versions 2.0.0 through 2.3.0

Description Flag Forge, a Capture The Flag (CTF) platform, has an issue where the public API endpoint /api/user/[username] returns user email addresses in its JSON response. This exposes sensitive user information. The issue is addressed in version 2.3.1, which removes email addresses from public API responses while maintaining the endpoint's public accessibility. The vulnerable parameter is username.

Recommendations Upgrade to Flag Forge version 2.3.1 or later.

Exploitability

Exploit

Fix

Researchers

At0Mxploit

Vendors

Affected products

Weakness enumeration

CWE-359: Exposure of Private Personal Information to an Unauthorized Actor

Related identifiers

CVE-2025-59843