BREW-DEFUDDLE-CVE-2026-61824 (GHSA-JG4P-G6XJ-4QMF)

Vulnerability from osv_homebrew – Published: 2026-08-23 20:37 – Updated: 2026-09-20 11:24 – Source website
VLAI
Summary
Defuddle vulnerable to XSS via unescaped attribute interpolation in site extractors
Details

Summary

An Improper Neutralization of Input During Web Page Generation issue in the site extractor component allows an attacker-controlled attribute value to be injected into output HTML without escaping. An attacker who crafts a malicious HTML page or controls content on a matching domain can execute arbitrary scripts when a victim processes the page, resulting in Cross-Site Scripting (XSS). This affects defuddle through 0.19.0 and has been patched in version 0.19.1.

Impact

This vulnerability allows for Cross-Site Scripting (XSS) execution without needing to compromise external websites. Affected consumers include: - Obsidian Web Clipper, - web services serving the parsed output directly as HTML, and - any downstream application rendering the unsanitized HTML results

Patch

This issue has been patched in defuddle version 0.19.1. Users are encouraged to update to the latest release.

Severity
8.2 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "fix": "bump",
        "range_state": "fixed",
        "upstream_fixed_in": "0.19.1"
      },
      "package": {
        "ecosystem": "Homebrew",
        "name": "defuddle",
        "purl": "pkg:brew/defuddle"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.18.1"
            },
            {
              "fixed": "0.19.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "confidence": "high",
    "source": "matched",
    "strategy": "registry",
    "upstream_evidence": [
      {
        "ecosystem": "npm",
        "key": "pkg:npm/defuddle@0.19.4",
        "name": "defuddle",
        "strategy": "registry",
        "subject_version": "0.19.4"
      }
    ]
  },
  "details": "## Summary\n\nAn Improper Neutralization of Input During Web Page Generation issue in the site extractor component allows an attacker-controlled attribute value to be injected into output HTML without escaping. An attacker who crafts a malicious HTML page or controls content on a matching domain can execute arbitrary scripts when a victim processes the page, resulting in Cross-Site Scripting (XSS).  This affects defuddle through 0.19.0 and has been patched in version 0.19.1.\n\n## Impact\n\nThis vulnerability allows for Cross-Site Scripting (XSS) execution without needing to compromise external websites. Affected consumers include:\n- Obsidian Web Clipper, \n- web services serving the parsed output directly as HTML, and \n- any downstream application rendering the unsanitized HTML results\n\n## Patch\nThis issue has been patched in defuddle version 0.19.1. Users are encouraged to update to the latest release.",
  "id": "BREW-defuddle-CVE-2026-61824",
  "modified": "2026-09-20T11:24:00Z",
  "published": "2026-08-23T20:37:22Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/kepano/defuddle/security/advisories/GHSA-jg4p-g6xj-4qmf"
    },
    {
      "type": "WEB",
      "url": "https://github.com/kepano/defuddle/pull/326"
    },
    {
      "type": "WEB",
      "url": "https://github.com/kepano/defuddle/commit/baf2eaef61d334ef595b28c89e5c5e89e52daf7f"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/kepano/defuddle"
    },
    {
      "type": "WEB",
      "url": "https://github.com/kepano/defuddle/releases/tag/0.19.1"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Defuddle vulnerable to XSS via unescaped attribute interpolation in site extractors",
  "upstream": [
    "GHSA-jg4p-g6xj-4qmf",
    "CVE-2026-61824"
  ]
}



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