CVE-2025-59841

Summary

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.

Affected Software

VendorProductVersion RangeStatus
FlagForgeCTFflagForge>= 2.2.0, < 2.3.1affected

Weaknesses

  • CWE-384: CWE-384: Session Fixation
  • CWE-613: CWE-613: Insufficient Session Expiration

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: yes
    • Technical Impact: total

References