by Kastro
Paper/Archive/CVE-2025-59827

CVE-2025-59827

FlagForgeCTF flagForge — FlagForgeCTF is Missing Authorization in main-v2

EPSS 0.4%CVSS 9.8
critical.is priorityof 100
36
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 31.1.311 × 206.2No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

Flag Forge is a Capture The Flag (CTF) platform. In version 2.1.0, the /api/admin/assign-badge endpoint lacks proper access control, allowing any authenticated user to assign high-privilege badges (e.g., Staff) to themselves. This could lead to privilege escalation and impersonation of administrative roles. This issue has been patched in version 2.2.0.

Affected

ProductAffectedFixed inSource
flagForge= 2.1.0–CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
GitHub_M (CNA)8.2CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: partial

References

refgithub.com/FlagForgeCTF/flagForge/security/advisories/GHSA-7944-xvv7-cv79