BREW-COPYPARTY-CVE-2025-54589 (CVE-2025-54589)

Vulnerability from osv_homebrew – Published: 2026-08-13 16:41 – Updated: 2026-09-09 23:48 – Source website
VLAI
Summary
copyparty Reflected XSS via Filter Parameter
Details

Copyparty is a portable file server. In versions 1.18.6 and below, 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, allowing for reflected Cross-Site Scripting (XSS) and can be exploited against both authenticated and unauthenticated users. This is fixed in version 1.18.7.

Severity
6.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "fix": "bump",
        "range_state": "fixed",
        "upstream_fixed_in": "1.18.7"
      },
      "package": {
        "ecosystem": "Homebrew",
        "name": "copyparty",
        "purl": "pkg:brew/copyparty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.20.20"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "confidence": "high",
    "source": "matched",
    "strategy": "git",
    "upstream_evidence": [
      {
        "ecosystem": "GIT",
        "key": "https://github.com/9001/copyparty",
        "name": "https://github.com/9001/copyparty",
        "strategy": "git",
        "subject_version": "1.20.23"
      },
      {
        "ecosystem": "PyPI",
        "key": "pkg:pypi/copyparty@1.20.23",
        "name": "copyparty",
        "strategy": "registry",
        "subject_version": "1.20.23"
      }
    ]
  },
  "details": "Copyparty is a portable file server. In versions 1.18.6 and below, 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 `\u003cscript\u003e` block without proper escaping, allowing for reflected Cross-Site Scripting (XSS) and can be exploited against both authenticated and unauthenticated users. This is fixed in version 1.18.7.",
  "id": "BREW-copyparty-CVE-2025-54589",
  "modified": "2026-09-09T23:48:44Z",
  "published": "2026-08-13T16:41:06Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/9001/copyparty/releases/tag/v1.18.7"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/9001/copyparty/security/advisories/GHSA-8mx2-rjh8-q3jq"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/54xxx/CVE-2025-54589.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-54589"
    },
    {
      "type": "FIX",
      "url": "https://github.com/9001/copyparty/commit/a8705e611d05eeb22be5d3d7d9ab5c020fe54c62"
    }
  ],
  "schema_version": "1.7.3",
  "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",
  "upstream": [
    "CVE-2025-54589",
    "GHSA-8mx2-rjh8-q3jq",
    "PYSEC-2026-1276"
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.