Vulnerability index

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Flagforge HIGH 7.5
CVE-2026-21868

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 us…

Fix: 2.3.3+
Fix from $1,950 2026-01-08
Flagforge CRITICAL 9.1
CVE-2025-61777

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 `/a…

Fix: 2.3.2+
Fix from $2,300 2025-10-06
Flagforge HIGH 8.2
CVE-2025-59932

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 …

Fix: 2.3.1+
Fix from $1,950 2025-09-27
Flagforge MEDIUM 5.3
CVE-2025-59843

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 add…

Fix: 2.3.1+
Fix from $1,600 2025-09-26
Flagforge CRITICAL 9.8
CVE-2025-59841

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 inv…

Fix: 2.3.1+
Fix from $2,300 2025-09-25
Flagforge CRITICAL 9.8
CVE-2025-59827

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 aut…

Mitigation only
Fix from $2,300 2025-09-24
Flagforge HIGH 7.5
CVE-2025-59833

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 hin…

Fix: 2.3+
Fix from $1,950 2025-09-24
Flagforge HIGH 7.6
CVE-2025-59826

Flag Forge is a Capture The Flag (CTF) platform. In version 2.1.0, non-admin users can create arbitrary challenges, potentially introducing malicious…

Mitigation only
Fix from $1,950 2025-09-23