FlagForgeCTF Exposes User Emails via Public /api/user/[username] API_CVE-2025-59843

6.9 / 10

MEDIUM

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N

Description

Flag Forge is a Capture The Flag (CTF) platform. From versions 2.0.0 to before 2.3.1, the public endpoint /api/user/[username] returns user email addresses in its JSON response. The problem has been patched in FlagForge version 2.3.1. The fix removes email addresses from public API responses while keeping the endpoint publicly accessible. Users should upgrade to version 2.3.1 or later to eliminate exposure. There are no workarounds for this vulnerability.

Basic Information

ID CVE-2025-59843

Source GitHub_M

Published Sep 26, 2025 at 16:03

Affected Product

Vendor FlagForgeCTF

Product flagForge

Version >= 2.0.0, < 2.3.1

Affected Versions FlagForgeCTF flagForge >= 2.0.0, < 2.3.1

CWE Classification

CWE-359

References

github.com /FlagForgeCTF/flagForge/security/advisories/GHSA-qqjv-8r5p-7xpj

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    "published": "2025-09-26T16:03:34.038Z",
    "modified": "2025-09-26T16:03:34.038Z",
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