CVE-2025-59843
Medium
Description
Flag Forge is a Capture The Flag (CTF) platform. From versions 2.0.0 to before 2.3.2, the public endpoint /api/user/[username] returns user email addresses in its JSON response. The fix, intended for release in 2.3.1 but only available starting in version 2.3.2, removes email addresses from public API responses while keeping the endpoint publicly accessible. Users should upgrade to version 2.3.2 or later to eliminate exposure. There are no workarounds for this vulnerability.
SeverityMedium
CVSS5.3
Exploit probability—
ProductFlagforge
PublishedSep 26, 2025
First seenSep 26, 2025
Weakness typeCWE-359CWE-359
How to fix
Update
- flagforge flagforge2.3.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| flagforge flagforge | 2.0 ≤ v < 2.3.1 | 2.3.1 |
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