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CVE-2025-52576

Estado: AnalizadaMedia (5.3)—

Kanboard is project management software that focuses on the Kanban methodology. Prior to version 1.2.46, Kanboard is vulnerable to username enumeration and IP spoofing-based brute-force protection bypass. By analyzing login behavior and abusing trusted HTTP headers, an attacker can determine valid usernames and circumvent rate-limiting or blocking mechanisms. Any organization running a publicly accessible Kanboard instance is affected, especially if relying on IP-based protections like Fail2Ban or CAPTCHA for login rate-limiting.

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Attackers with access to the login page can exploit this flaw to enumerate valid usernames and bypass IP-based blocking mechanisms, putting all user accounts at higher risk of brute-force or credential stuffing attacks. Version 1.2.46 contains a patch for the issue.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Kanboard — Kanboard

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2025-52576",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-52576",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-06-25T17:55:01.494974Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 3.9
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 3.9
      }
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  },
  "affected": [
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          "product": "kanboard",
          "versions": [
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              "version": "< 1.2.46"
            }
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  ],
  "published": "2025-06-25T17:15:39.023",
  "references": [
    {
      "url": "https://github.com/kanboard/kanboard/blob/cbb7e60fb595ff4572bb8801b275a0b451c4bda0/app/Model/UserLockingModel.php#L101-L104",
      "tags": [
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    {
      "url": "https://github.com/kanboard/kanboard/blob/cbb7e60fb595ff4572bb8801b275a0b451c4bda0/app/Subscriber/AuthSubscriber.php#L96-L108",
      "tags": [
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    {
      "url": "https://github.com/kanboard/kanboard/commit/3079623640dc39f9c7b0c840d2a79095331051f1",
      "tags": [
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      "source": "security-advisories@github.com"
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    {
      "url": "https://github.com/kanboard/kanboard/security/advisories/GHSA-qw57-7cx6-wvp7",
      "tags": [
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      "source": "security-advisories@github.com"
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    {
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      "tags": [
        "Vendor Advisory"
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      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-203"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Kanboard is project management software that focuses on the Kanban methodology. Prior to version 1.2.46, Kanboard is vulnerable to username enumeration and IP spoofing-based brute-force protection bypass. By analyzing login behavior and abusing trusted HTTP headers, an attacker can determine valid usernames and circumvent rate-limiting or blocking mechanisms. Any organization running a publicly accessible Kanboard instance is affected, especially if relying on IP-based protections like Fail2Ban or CAPTCHA for login rate-limiting. Attackers with access to the login page can exploit this flaw to enumerate valid usernames and bypass IP-based blocking mechanisms, putting all user accounts at higher risk of brute-force or credential stuffing attacks. Version 1.2.46 contains a patch for the issue."
    },
    {
      "lang": "es",
      "value": "Kanboard es un software de gestión de proyectos centrado en la metodología Kanban. Antes de la versión 1.2.46, Kanboard era vulnerable a la enumeración de nombres de usuario y a la elusión de la protección por fuerza bruta basada en suplantación de IP. Al analizar el comportamiento de inicio de sesión y abusar de los encabezados HTTP de confianza, un atacante puede determinar nombres de usuario válidos y eludir los mecanismos de limitación o bloqueo. Cualquier organización que ejecute una instancia de Kanboard de acceso público se ve afectada, especialmente si utiliza protecciones basadas en IP como Fail2Ban o CAPTCHA para la limitación de la tasa de inicio de sesión. Los atacantes con acceso a la página de inicio de sesión pueden explotar esta vulnerabilidad para enumerar nombres de usuario válidos y eludir los mecanismos de bloqueo basados en IP, lo que aumenta el riesgo de ataques de fuerza bruta o robo de credenciales. La versión 1.2.46 incluye un parche para solucionar este problema."
    }
  ],
  "lastModified": "2026-06-17T09:36:42.610",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:kanboard:kanboard:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E6D20FE2-A681-49ED-B6E6-1218CDDD6759",
              "versionEndExcluding": "1.2.46"
            }
          ],
          "operator": "OR"
        }
      ]
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  ],
  "sourceIdentifier": "security-advisories@github.com"
}