VULNERABILITY INTELLIGENCE

CVE-2025-59841

CVSS score9.8 CRITICAL
EPSS probability0.39%
CISA KEVNot currently listed
Published2025-09-25
Last modified2026-10-11
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Weakness classification

  • security-advisories@github.com: CWE-384

Primary references