Critical severity · published Sep 24, 2025
CVE-2025-59827
FlagForgeCTF is Missing Authorization in main-v2
9.8
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 31% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FL
flagForge · FlagForgeCTF
= 2.1.0 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-59827
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-59827
Vendor Advisory
https://github.com/FlagForgeCTF/flagForge/security/advisories/GHSA-7944-xvv7-cv79
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