CWE-836

{
  "affected": [],
  "aliases": [
    "CVE-2025-64471"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-836"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-09T18:16:05Z",
    "severity": "MODERATE"
  },
  "details": "A use of password hash instead of password for authentication vulnerability [CWE-836] vulnerability in Fortinet FortiWeb 8.0.0 through 8.0.1, FortiWeb 7.6.0 through 7.6.4, FortiWeb 7.4.0 through 7.4.10, FortiWeb 7.2.0 through 7.2.11, FortiWeb 7.0.0 through 7.0.11 may allow an unauthenticated attacker to use the hash in place of the password to authenticate via crafted HTTP/HTTPS requests",
  "id": "GHSA-rr29-mpmg-47mc",
  "modified": "2025-12-09T18:30:47Z",
  "published": "2025-12-09T18:30:47Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-64471"
    },
    {
      "type": "WEB",
      "url": "https://fortiguard.fortinet.com/psirt/FG-IR-25-984"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "code.vikunja.io/api"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.3.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-40103"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-836",
      "CWE-863"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-04-10T15:36:47Z",
    "nvd_published_at": "2026-04-10T17:17:13Z",
    "severity": "MODERATE"
  },
  "details": "### Summary\n\nVikunja\u0027s scoped API token enforcement for custom project background routes is method-confused. A token with only `projects.background` can successfully delete a project background, while a token with only `projects.background_delete` is rejected.\n\nThis is a scoped-token authorization bypass.\n\n### Details\n\nI verified this locally on commit `c5450fb55f5192508638cbb3a6956438452a712e`.\n\nRelevant code paths:\n* `pkg/models/api_routes.go`\n* `pkg/routes/routes.go`\n* `pkg/modules/background/handler/background.go`\n\nRoute registration exposes separate permissions for the same path:\n* `GET /api/v1/projects/:project/background` -\u003e `projects.background`\n* `DELETE /api/v1/projects/:project/background` -\u003e `projects.background_delete`\n\nAt enforcement time, `CanDoAPIRoute()` falls back to the parent group and reconstructs the child permission from the path segments only. For the DELETE request, that becomes `background`, so the matcher accepts any token containing `projects.background` without re-checking the HTTP method or matching the stored route detail.\n\nThis matters because `RemoveProjectBackground()` is a real destructive operation:\n* It checks project update rights.\n* It deletes the background file if present.\n* It clears the project\u0027s `BackgroundFileID`.\n\n### PoC\n\n1. Log in as a user who can update a project that already has a background.\n2. Create an API token with only:\n   `{\"projects\":[\"background\"]}`\n3. Send:\n   `DELETE /api/v1/projects/\u003cproject_id\u003e/background`\n   `Authorization: Bearer \u003ctoken\u003e`\n4. Observe that the request succeeds and the project background is removed.\n\n**For comparison:**\n1. Create an API token with only:\n   `{\"projects\":[\"background_delete\"]}`\n2. Repeat the same DELETE request.\n3. Observe that the request is rejected with `401 Unauthorized`.\n\nI confirmed this locally with three validations:\n1. `/api/v1/routes` advertises both `background` and `background_delete`.\n2. The matcher unit test proves `CanDoAPIRoute()` accepts DELETE for `background`.\n3. The webtest proves a real API token with only `background` successfully deletes the background.\n\n### Impact\n\nScoped API tokens can exceed their intended capability. A token intended for project background access can delete project backgrounds, which weakens the trust model for automation and third-party integrations that rely on narrowly scoped tokens.\n\nThe attacker needs a valid API token created by a user who has update rights on the target project, but the token itself only needs the weaker `projects.background` permission.",
  "id": "GHSA-v479-vf79-mg83",
  "modified": "2026-04-24T20:49:21Z",
  "published": "2026-04-10T15:36:47Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/go-vikunja/vikunja/security/advisories/GHSA-v479-vf79-mg83"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-40103"
    },
    {
      "type": "WEB",
      "url": "https://github.com/go-vikunja/vikunja/pull/2584"
    },
    {
      "type": "WEB",
      "url": "https://github.com/go-vikunja/vikunja/commit/6a0f39b252a81fa4b19dc56dc889183acc9225ae"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/go-vikunja/vikunja"
    },
    {
      "type": "WEB",
      "url": "https://github.com/go-vikunja/vikunja/releases/tag/v2.3.0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Vikunja: Scoped API tokens with projects.background permission can delete project backgrounds"
}

{
  "affected": [],
  "aliases": [
    "CVE-2019-25552"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-836"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-03-21T13:16:17Z",
    "severity": "HIGH"
  },
  "details": "CEWE PHOTO SHOW 6.4.3 contains a denial of service vulnerability that allows attackers to crash the application by submitting an excessively long buffer to the password field. Attackers can paste a large string of repeated characters into the password input during the upload process to trigger an application crash.",
  "id": "GHSA-w87c-589x-qqc3",
  "modified": "2026-03-21T15:33:23Z",
  "published": "2026-03-21T15:33:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-25552"
    },
    {
      "type": "WEB",
      "url": "https://cewe-photoworld.com"
    },
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/exploits/46861"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/cewe-photo-show-denial-of-service-via-password-field"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}