{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "nuxt-og-image"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.2.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-34405"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-31T23:27:03Z",
    "nvd_published_at": "2026-03-31T22:16:18Z",
    "severity": "MODERATE"
  },
  "details": "**Product:** Nuxt OG Image \n**Version:** 6.1.2\n**CWE-ID:** [CWE-79](https://cwe.mitre.org/data/definitions/79.html): Improper Neutralization of Input During Web Page Generation\n**Description:** Incorrect parsing of GET parameters leads to the possibility of HTML injection and JavaScript code injection.\n**Impact:** Client-Side JavaScript Execution\n**Exploitation condition:** An external user\n**Mitigation:** Correct the logic of parsing GET parameters and their subsequent implementation into the generated page.\n**Researcher:** Dmitry Prokhorov (Positive Technologies)\n\n## Research \nDuring the analysis of the nuxt-og-image package, which is shipped with the nuxt-seo package, a zero\u2011day vulnerability was discovered.\nThis research revealed that the image\u2011generation component by the URI: `/_og/d/` (and, in older versions, `/og-image/`) contains a vulnerability that allows injection of arbitrary attributes into the HTML page body. The vulnerability was reproduced using the standard configuration and the default templates.\n\n\n_Listing 1. The content of the configuration file `nuxt.config.ts`_ \n```\nexport default defineNuxtConfig({\n  modules: [\u0027nuxt-og-image\u0027],\n  devServer: {\n    host: \u0027web-test.local\u0027,\n    port: 3000\n  },\n  site: {\n    url: \u0027http://web-test.local:3000\u0027,\n  },\n  ogImage: {\n    fonts: [\n      \u0027Inter:400\u0027, \n      \u0027Inter:700\u0027\n    ],\n  }\n})\n```\n\n## Vulnerability reproduction\nTo demonstrate the proof\u2011of\u2011concept, follow the URI: `/_og/d/og.html?width=1000\u0026height=1000\u0026onmouseover=alert(document.cookie)\u0026autofocus`\nThe injected parameters `onmouseover=alert(document.cookie)` and `autofocus` are treated as attributes and are inserted directly into the generated HTML page.\n\n\n_Listing 2. HTTP-request example_\n```\nGET /_og/d/og.html?width=1000\u0026height=1000\u0026onmouseover=alert(document.cookie) HTTP/1.1\nHost: web-test.local:3000\n```\n\n_Figure 1. The injected attribute in the HTML body_\n\u003cimg width=\"974\" height=\"670\" alt=\"image\" src=\"https://github.com/user-attachments/assets/d442c235-71a5-4da9-a963-8cf4b8614745\" /\u003e\n\n_Figure 2. JavaScript code execution_\n\u003cimg width=\"974\" height=\"291\" alt=\"image\" src=\"https://github.com/user-attachments/assets/01579f19-8e80-4fae-8516-5903370ee6d8\" /\u003e\n\n\n## Credits\nResearcher: Dmitry Prokhorov (Positive Technologies)",
  "id": "GHSA-mg36-wvcr-m75h",
  "modified": "2026-04-06T16:39:56Z",
  "published": "2026-03-31T23:27:03Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/nuxt-modules/og-image/security/advisories/GHSA-mg36-wvcr-m75h"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-34405"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/nuxt-modules/og-image"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Nuxt OG Image is vulnerable to reflected XSS via query parameter injection into HTML attributes"
}