CVE-2025-59827

FlagForgeCTF is Missing Authorization in main-v2

Published Sep 24, 2025 CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-31051 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.
History
Type Values Removed Values Added
First Time appeared Flagforge
Flagforge flagforge
CPEs cpe:2.3:a:flagforge:flagforge:2.1.0:*:*:*:*:*:*:*
Vendors & Products Flagforge
Flagforge flagforge
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Type Values Removed Values Added
First Time appeared Flagforgectf
Flagforgectf flagforge
Vendors & Products Flagforgectf
Flagforgectf flagforge
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title FlagForgeCTF is Missing Authorization in main-v2
Weaknesses CWE-862
References
Metrics cvssV3_0

{'score': 8.2, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Sep 24, 2025, 8:39 PM
Reserved
Sep 22, 2025, 2:34 PM
Status
Analyzed
Published
Sep 24, 2025, 9:15 PM
Modified
Jun 17, 2026, 9:46 AM