Vulnerabilites related to FlagForgeCTF - flagForge
CVE-2025-59833 (GCVE-0-2025-59833)
Vulnerability from cvelistv5
Published
2025-09-24 20:25
Modified
2025-09-24 20:44
CWE
  • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Summary
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 deduction. Users can view all hints for free, undermining the business logic of the platform and reducing the integrity of the challenge system. This issue has been patched in version 2.3.0.
Impacted products
Vendor Product Version
FlagForgeCTF flagForge Version: >= 2.1.0, < 2.3.0
Create a notification for this product.
Show details on NVD website


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CVE-2025-59841 (GCVE-0-2025-59841)
Vulnerability from cvelistv5
Published
2025-09-25 15:15
Modified
2025-09-29 15:48
Severity ?
CWE
  • CWE-384 - Session Fixation
  • CWE-613 - Insufficient Session Expiration
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.
Impacted products
Vendor Product Version
FlagForgeCTF flagForge Version: >= 2.2.0, < 2.3.1
Create a notification for this product.
Show details on NVD website


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CVE-2025-59827 (GCVE-0-2025-59827)
Vulnerability from cvelistv5
Published
2025-09-24 20:23
Modified
2025-09-24 20:39
CWE
Summary
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 escalation and impersonation of administrative roles. This issue has been patched in version 2.2.0.
Impacted products
Vendor Product Version
FlagForgeCTF flagForge Version: = 2.1.0
Create a notification for this product.
Show details on NVD website


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CVE-2025-59826 (GCVE-0-2025-59826)
Vulnerability from cvelistv5
Published
2025-09-23 20:26
Modified
2025-09-24 13:23
CWE
Summary
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.
Impacted products
Vendor Product Version
FlagForgeCTF flagForge Version: = 2.1.0
Create a notification for this product.
Show details on NVD website


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CVE-2025-59932 (GCVE-0-2025-59932)
Vulnerability from cvelistv5
Published
2025-09-27 00:51
Modified
2025-09-29 14:13
CWE
  • CWE-284 - Improper Access Control
Summary
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, modify, or delete resources on the platform. The issue has been fixed in FlagForge version 2.3.1.
Impacted products
Vendor Product Version
FlagForgeCTF flagForge Version: >= 2.0.0, < 2.3.1
Create a notification for this product.
Show details on NVD website


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CVE-2025-59843 (GCVE-0-2025-59843)
Vulnerability from cvelistv5
Published
2025-09-26 16:03
Modified
2025-09-26 17:51
CWE
  • CWE-359 - Exposure of Private Personal Information to an Unauthorized Actor
Summary
Flag Forge is a Capture The Flag (CTF) platform. From versions 2.0.0 to before 2.3.1, the public endpoint /api/user/[username] returns user email addresses in its JSON response. The problem has been patched in FlagForge version 2.3.1. The fix removes email addresses from public API responses while keeping the endpoint publicly accessible. Users should upgrade to version 2.3.1 or later to eliminate exposure. There are no workarounds for this vulnerability.
Impacted products
Vendor Product Version
FlagForgeCTF flagForge Version: >= 2.0.0, < 2.3.1
Create a notification for this product.
Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-59843",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-09-26T17:35:23.214953Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-09-26T17:51:22.644Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "flagForge",
          "vendor": "FlagForgeCTF",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 2.0.0, \u003c 2.3.1"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Flag Forge is a Capture The Flag (CTF) platform. From versions 2.0.0 to before 2.3.1, the public endpoint /api/user/[username] returns user email addresses in its JSON response. The problem has been patched in FlagForge version 2.3.1. The fix removes email addresses from public API responses while keeping the endpoint publicly accessible. Users should upgrade to version 2.3.1 or later to eliminate exposure. There are no workarounds for this vulnerability."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 6.9,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "LOW",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-359",
              "description": "CWE-359: Exposure of Private Personal Information to an Unauthorized Actor",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-26T16:03:34.038Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/FlagForgeCTF/flagForge/security/advisories/GHSA-qqjv-8r5p-7xpj",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/FlagForgeCTF/flagForge/security/advisories/GHSA-qqjv-8r5p-7xpj"
        }
      ],
      "source": {
        "advisory": "GHSA-qqjv-8r5p-7xpj",
        "discovery": "UNKNOWN"
      },
      "title": "FlagForgeCTF Exposes User Emails via Public /api/user/[username] API"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-59843",
    "datePublished": "2025-09-26T16:03:34.038Z",
    "dateReserved": "2025-09-22T14:34:03.472Z",
    "dateUpdated": "2025-09-26T17:51:22.644Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}