FKIE_CVE-2025-59841

Vulnerability from fkie_nvd - Published: 2025-09-25 16:15 - Updated: 2026-10-11 20:10
Severity
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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.
References
security-advisories@github.comhttps://github.com/FlagForgeCTF/flagForge/commit/304b6c82a4f76871b336404b91e5cdd8a7d7d5bdPatch
security-advisories@github.comhttps://github.com/FlagForgeCTF/flagForge/security/advisories/GHSA-h6pr-4cwv-6cjgVendor Advisory
Impacted products
Vendor Product Version
flagforge flagforge *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "flagForge",
          "vendor": "FlagForgeCTF",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 2.2.0, \u003c 2.3.1"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:flagforge:flagforge:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "9FE98A61-AA2F-46F3-A9A7-C71454E9DA3A",
              "versionEndExcluding": "2.3.1",
              "versionStartIncluding": "2.2",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    },
    {
      "lang": "es",
      "value": "Flag Forge es una plataforma de Capture The Flag (CTF). En versiones desde la 2.2.0 hasta antes de la 2.3.1, la aplicaci\u00f3n web FlagForge gestiona incorrectamente la invalidaci\u00f3n de sesi\u00f3n. Los usuarios autenticados pueden seguir accediendo a puntos finales protegidos, como /api/profile, incluso despu\u00e9s de cerrar sesi\u00f3n. Los tokens CSRF tambi\u00e9n siguen siendo v\u00e1lidos despu\u00e9s de cerrar sesi\u00f3n, lo que puede permitir acciones no autorizadas. Este problema ha sido parcheado en la versi\u00f3n 2.3.1."
    }
  ],
  "id": "CVE-2025-59841",
  "lastModified": "2026-10-11T20:10:00.200",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-59841",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-09-29T15:46:45.632139Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-09-25T16:15:35.940",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/FlagForgeCTF/flagForge/commit/304b6c82a4f76871b336404b91e5cdd8a7d7d5bd"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/FlagForgeCTF/flagForge/security/advisories/GHSA-h6pr-4cwv-6cjg"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-384"
        },
        {
          "lang": "en",
          "value": "CWE-613"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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