cve-2025-52576
Vulnerability from cvelistv5
Published
2025-06-25 16:46
Modified
2025-06-25 17:55
Summary
Kanboard vulnerable to Username Enumeration via Login Behavior and Bruteforce Protection Bypass
Impacted products
kanboardkanboard
Show details on NVD website


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              "content": {
                "id": "CVE-2025-52576",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-06-25T17:55:01.494974Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
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        "providerMetadata": {
          "dateUpdated": "2025-06-25T17:55:05.784Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        "references": [
          {
            "tags": [
              "exploit"
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            "url": "https://github.com/kanboard/kanboard/security/advisories/GHSA-qw57-7cx6-wvp7"
          }
        ],
        "title": "CISA ADP Vulnrichment"
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    ],
    "cna": {
      "affected": [
        {
          "product": "kanboard",
          "vendor": "kanboard",
          "versions": [
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              "status": "affected",
              "version": "\u003c 1.2.46"
            }
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          "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."
        }
      ],
      "metrics": [
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            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
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      "providerMetadata": {
        "dateUpdated": "2025-06-25T16:46:01.954Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
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      "references": [
        {
          "name": "https://github.com/kanboard/kanboard/security/advisories/GHSA-qw57-7cx6-wvp7",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/kanboard/kanboard/security/advisories/GHSA-qw57-7cx6-wvp7"
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        {
          "name": "https://github.com/kanboard/kanboard/commit/3079623640dc39f9c7b0c840d2a79095331051f1",
          "tags": [
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          "url": "https://github.com/kanboard/kanboard/commit/3079623640dc39f9c7b0c840d2a79095331051f1"
        },
        {
          "name": "https://github.com/kanboard/kanboard/blob/cbb7e60fb595ff4572bb8801b275a0b451c4bda0/app/Model/UserLockingModel.php#L101-L104",
          "tags": [
            "x_refsource_MISC"
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          "url": "https://github.com/kanboard/kanboard/blob/cbb7e60fb595ff4572bb8801b275a0b451c4bda0/app/Model/UserLockingModel.php#L101-L104"
        },
        {
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          "tags": [
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          "url": "https://github.com/kanboard/kanboard/blob/cbb7e60fb595ff4572bb8801b275a0b451c4bda0/app/Subscriber/AuthSubscriber.php#L96-L108"
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      "source": {
        "advisory": "GHSA-qw57-7cx6-wvp7",
        "discovery": "UNKNOWN"
      },
      "title": "Kanboard vulnerable to Username Enumeration via Login Behavior and Bruteforce Protection Bypass"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-52576",
    "datePublished": "2025-06-25T16:46:01.954Z",
    "dateReserved": "2025-06-18T03:55:52.037Z",
    "dateUpdated": "2025-06-25T17:55:05.784Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
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