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Product · FlagForgeCTF

flagForge

8 known vulnerabilities.

flagForge at a glance

Last 12 months
1
Critical · all time
2
Exploited · all time
0
Public exploit · all time
2
New vulnerabilities per month · last 12 months
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8 results · Feed

  • High 7.5

    Flag Forge has ReDoS Vulnerability in User Profile Lookup API

    Flag Forge is a Capture The Flag (CTF) platform. Versions 2.3.2 and below have a Regular Expression Denial of Service (ReDoS) vulnerability in the user profile API endpoint (/api/user/[username]). The application constructs a regular expression dynamically us…

  • Critical 9.4
    CVE-2025-61777 Public exploit

    FlagForge Allows Unauthenticated Badge Template API Access

    Flag Forge is a Capture The Flag (CTF) platform. Starting in version 2.0.0 and prior to version 2.3.2, the `/api/admin/badge-templates` (GET) and `/api/admin/badge-templates/create` (POST) endpoints previously allowed access without authentication or authoriz…

  • High 8.6

    FlagForgeCTF Unauthenticated Resource Modification/Deletion

    Flag Forge is a Capture The Flag (CTF) platform. From versions 2.0.0 to before 2.3.1, the /api/resources endpoint previously allowed POST and DELETE requests without proper authentication or authorization. This could have enabled unauthorized users to create,…

  • Medium 6.9
    CVE-2025-59843 Public exploit

    FlagForgeCTF Exposes User Emails via Public /api/user/[username] API

    Flag Forge is a Capture The Flag (CTF) platform. From versions 2.0.0 to before 2.3.2, the public endpoint /api/user/[username] returns user email addresses in its JSON response. The fix, intended for release in 2.3.1 but only available starting in version 2.3…

  • Critical 9.8

    FlagForgeCTF's Improper Session Handling Allows Access After Logout

    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 lo…

  • High 7.5

    FlagForgeCTF Hint Exposure via API

    Flag Forge is a Capture The Flag (CTF) platform. In versions from 2.1.0 to before 2.3.0, the API endpoint GET /api/problems/:id returns challenge hints in plaintext within the question object, regardless of whether the user has unlocked them via point deducti…

  • High 8.2

    FlagForgeCTF is Missing Authorization in main-v2

    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 esca…

  • High 7.6

    FlagForgeCTF Vulnerable to Unauthorized Problem Creation

    Flag Forge is a Capture The Flag (CTF) platform. In version 2.1.0, non-admin users can create arbitrary challenges, potentially introducing malicious, incorrect, or misleading content. This issue has been patched in version 2.2.0.