Flag Forge is a Capture The Flag (CTF) platform. In versions from 2.2.0 to before 2.3.1, the FlagForge web application improperly handles session invalidation. Authenticated users can continue to access protected endpoints, such as /api/profile, even after logging out. CSRF tokens are also still valid post-logout, which can allow unauthorized actions. This issue has been patched in version 2.3.1.
Advisories
Source ID Title
EUVD EUVD EUVD-2025-31126 Flag Forge is a Capture The Flag (CTF) platform. In versions from 2.2.0 to before 2.3.1, the FlagForge web application improperly handles session invalidation. Authenticated users can continue to access protected endpoints, such as /api/profile, even after logging out. CSRF tokens are also still valid post-logout, which can allow unauthorized actions. This issue has been patched in version 2.3.1.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 08 Oct 2025 16:45:00 +0000

Type Values Removed Values Added
First Time appeared Flagforge
Flagforge flagforge
CPEs cpe:2.3:a:flagforge:flagforge:*:*:*:*:*:*:*:*
Vendors & Products Flagforge
Flagforge flagforge

Mon, 29 Sep 2025 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Fri, 26 Sep 2025 11:45:00 +0000

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

Thu, 25 Sep 2025 15:30:00 +0000

Type Values Removed Values Added
Description Flag Forge is a Capture The Flag (CTF) platform. In versions from 2.2.0 to before 2.3.1, the FlagForge web application improperly handles session invalidation. Authenticated users can continue to access protected endpoints, such as /api/profile, even after logging out. CSRF tokens are also still valid post-logout, which can allow unauthorized actions. This issue has been patched in version 2.3.1.
Title FlagForgeCTF's Improper Session Handling Allows Access After Logout
Weaknesses CWE-384
CWE-613
References
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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2025-09-29T15:48:10.233Z

Reserved: 2025-09-22T14:34:03.472Z

Link: CVE-2025-59841

cve-icon Vulnrichment

Updated: 2025-09-29T15:48:07.454Z

cve-icon NVD

Status : Analyzed

Published: 2025-09-25T16:15:35.940

Modified: 2025-10-08T16:31:08.920

Link: CVE-2025-59841

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-09-26T11:35:41Z