← back
CVE-2025-59843

FlagForgeCTF Exposes User Emails via Public /api/user/[username] API

CVSS 6.9 MEDIUMEPSS 0.4%CWE-359
Vexday Risk Score
13Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 6.9EPSS 0.4%KEV nãoPoC Nuclei Metasploit Patch
Lifecycle
26 Sep 2025Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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.
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
Affected products
FlagForgeCTF · flagForge

Want to know if your infrastructure is exposed to this?

Talk to TrueHacking →