pysec-2025-71
Vulnerability from pysec
Published
2025-07-21 21:15
Modified
2025-07-23 15:24
Details

Cadwyn creates production-ready community-driven modern Stripe-like API versioning in FastAPI. In versions before 5.4.3, the version parameter of the "/docs" endpoint is vulnerable to a Reflected XSS (Cross-Site Scripting) attack. This XSS would notably allow an attacker to execute JavaScript code on a user's session for any application based on Cadwyn via a one-click attack. The vulnerability has been fixed in version 5.4.3.

Impacted products
Name purl
cadwyn pkg:pypi/cadwyn



{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "cadwyn",
        "purl": "pkg:pypi/cadwyn"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "b424ecd57cd8dabbc8fe39b8f8ccafea629c7728"
            }
          ],
          "repo": "https://github.com/zmievsa/cadwyn",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.4.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.1.0",
        "0.2.0",
        "1.0.0",
        "1.0.1",
        "1.0.2",
        "1.0.3",
        "1.1.0",
        "1.2.0",
        "1.3.0",
        "2.0.0",
        "2.0.1",
        "2.0.2",
        "2.0.3",
        "2.0.4",
        "2.0.5",
        "2.1.0",
        "2.1.0rc0",
        "2.1.0rc1",
        "2.2.0",
        "2.3.0",
        "2.3.0rc0",
        "2.3.1",
        "2.3.2",
        "2.3.3",
        "2.3.4",
        "2.3.5",
        "3.0.0",
        "3.0.1",
        "3.0.2",
        "3.1.0",
        "3.1.1",
        "3.1.2",
        "3.1.3",
        "3.1.4",
        "3.10.0",
        "3.10.1",
        "3.11.0",
        "3.11.1",
        "3.12.0",
        "3.12.1",
        "3.13.0",
        "3.14.0",
        "3.15.0",
        "3.15.1",
        "3.15.10",
        "3.15.2",
        "3.15.3",
        "3.15.3a1",
        "3.15.3a2",
        "3.15.4",
        "3.15.5",
        "3.15.6",
        "3.15.7",
        "3.15.8",
        "3.15.9",
        "3.2.0",
        "3.3.0",
        "3.3.1",
        "3.3.2",
        "3.3.3",
        "3.3.4",
        "3.4.0",
        "3.4.0.dev0",
        "3.4.1",
        "3.4.2",
        "3.4.3",
        "3.4.4",
        "3.4.5",
        "3.5.0",
        "3.6.0",
        "3.6.0.dev0",
        "3.6.1",
        "3.6.2",
        "3.6.3",
        "3.6.4",
        "3.6.5",
        "3.6.6",
        "3.7.0",
        "3.7.1",
        "3.8.0",
        "3.9.0",
        "3.9.1",
        "4.0.0",
        "4.1.0",
        "4.2.0",
        "4.2.1",
        "4.2.2",
        "4.2.3",
        "4.2.4",
        "4.3.0",
        "4.3.1",
        "4.4.0",
        "4.4.1",
        "4.4.2",
        "4.4.3",
        "4.4.5",
        "4.5.0",
        "4.6.0",
        "4.6.0a1",
        "5.0.0",
        "5.0.0a1",
        "5.1.0",
        "5.1.0a1",
        "5.1.1",
        "5.1.2",
        "5.1.3",
        "5.1.4",
        "5.2.0",
        "5.2.1",
        "5.2.2",
        "5.3.0",
        "5.3.1",
        "5.3.2",
        "5.3.3",
        "5.4.1",
        "5.4.2"
      ]
    }
  ],
  "aliases": [
    "CVE-2025-53528",
    "GHSA-2gxp-6r36-m97r"
  ],
  "details": "Cadwyn creates production-ready community-driven modern Stripe-like API versioning in FastAPI. In versions before 5.4.3, the version parameter of the \"/docs\" endpoint is vulnerable to a Reflected XSS (Cross-Site Scripting) attack. This XSS would notably allow an attacker to execute JavaScript code on a user\u0027s session for any application based on Cadwyn via a one-click attack. The vulnerability has been fixed in version 5.4.3.",
  "id": "PYSEC-2025-71",
  "modified": "2025-07-23T15:24:03.825615+00:00",
  "published": "2025-07-21T21:15:25+00:00",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/zmievsa/cadwyn/security/advisories/GHSA-2gxp-6r36-m97r"
    },
    {
      "type": "FIX",
      "url": "https://github.com/zmievsa/cadwyn/commit/b424ecd57cd8dabbc8fe39b8f8ccafea629c7728"
    }
  ]
}


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  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.


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