CVE-2025-59841

critical · 9.8

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.

9.8

CVSS

0.4%

EPSS (exploit prob.)

36th

EPSS percentile

2025-09-25

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-384CWE-613

Affected products

Vendor	Product	Affected versions
flagforge	flagforge	>= 2.2, < 2.3.1

Check a specific version with /api/v1/cve/match.

References

https://github.com/FlagForgeCTF/flagForge/commit/304b6c82a4f76871b336404b91e5cdd8a7d7d5bd
https://github.com/FlagForgeCTF/flagForge/security/advisories/GHSA-h6pr-4cwv-6cjg

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2025-59841