CVE-2025-59827

CRITICAL

FlagForge 2.1.0 - Authenticated Privilege Escalation via Badge Assignment Endpoint

Title source: llm
STIX 2.1

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.

References (1)

Core 1
Core References

Scores

CVSS v3 9.8
EPSS 0.0034
EPSS Percentile 26.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-862
Status published
Products (1)
flagforge/flagforge 2.1.0
Published Sep 24, 2025
Tracked Since Feb 18, 2026