ghsa-8mx2-rjh8-q3jq
Vulnerability from github
Published
2025-07-31 13:48
Modified
2025-07-31 16:44
Severity ?
6.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Summary
copyparty Reflected XSS via Filter Parameter
Details

Summary

Unauthorized reflected Cross-Site-Scripting when accessing the URL for recent uploads with the filter parameter containing JavaScript code.

Details

When accessing the recent uploads page at /?ru, users can filter the results using an input field at the top. This field appends a filter parameter to the URL, which reflects its value directly into a <script> block without proper escaping. This vulnerability allows for reflected Cross-Site Scripting (XSS) and can be exploited against both authenticated and unauthenticated users, enabling unwanted actions in the victims browser.

PoC

A URL like this will execute alert(1): https://127.0.0.1:3923/?ru&filter=</script><script>alert(1)</script>

Show details on source website

To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 1.18.6"
      },
      "package": {
        "ecosystem": "PyPI",
        "name": "copyparty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.18.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-54589"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-07-31T13:48:36Z",
    "nvd_published_at": "2025-07-31T14:15:34Z",
    "severity": "MODERATE"
  },
  "details": "### Summary\nUnauthorized reflected Cross-Site-Scripting when accessing the URL for recent uploads with the `filter` parameter containing JavaScript code.\n\n### Details\nWhen accessing the recent uploads page at `/?ru`, users can filter the results using an input field at the top. This field appends a filter parameter to the URL, which reflects its value directly into a `\u003cscript\u003e` block without proper escaping.\nThis vulnerability allows for reflected Cross-Site Scripting (XSS) and can be exploited against both authenticated and unauthenticated users, enabling unwanted actions in the victims browser.\n\n### PoC\nA URL like this will execute `alert(1)`:\n```\nhttps://127.0.0.1:3923/?ru\u0026filter=\u003c/script\u003e\u003cscript\u003ealert(1)\u003c/script\u003e\n```",
  "id": "GHSA-8mx2-rjh8-q3jq",
  "modified": "2025-07-31T16:44:30Z",
  "published": "2025-07-31T13:48:36Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/9001/copyparty/security/advisories/GHSA-8mx2-rjh8-q3jq"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-54589"
    },
    {
      "type": "WEB",
      "url": "https://github.com/9001/copyparty/commit/a8705e611d05eeb22be5d3d7d9ab5c020fe54c62"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/9001/copyparty"
    },
    {
      "type": "WEB",
      "url": "https://github.com/9001/copyparty/releases/tag/v1.18.7"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "copyparty Reflected XSS via Filter Parameter"
}


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