FKIE_CVE-2026-30934

Vulnerability from fkie_nvd - Published: 2026-03-10 18:18 - Updated: 2026-03-18 16:52
Severity ?
8.9 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Summary
FileBrowser Quantum is a free, self-hosted, web-based file manager. Prior to 1.3.1-beta and 1.2.2-stable, Stored XSS is possible via share metadata fields (e.g., title, description) that are rendered into HTML for /public/share/<hash> without context-aware escaping. The server uses text/template instead of html/template, allowing injected scripts to execute when victims visit the share URL. This vulnerability is fixed in 1.3.1-beta and 1.2.2-stable.
References
security-advisories@github.comhttps://github.com/gtsteffaniak/filebrowser/releases/tag/v1.2.2-stableRelease Notes
security-advisories@github.comhttps://github.com/gtsteffaniak/filebrowser/releases/tag/v1.3.1-betaRelease Notes
security-advisories@github.comhttps://github.com/gtsteffaniak/filebrowser/security/advisories/GHSA-r633-fcgp-m532Exploit, Vendor Advisory
Impacted products
Vendor Product Version
filebrowser filebrowser *
filebrowser filebrowser 1.2.1
filebrowser filebrowser 1.3.0
To clipboard 

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  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
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              "criteria": "cpe:2.3:a:filebrowser:filebrowser:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E9301582-B9B7-431D-B9F0-D2ED8A0F4F0A",
              "versionEndIncluding": "1.2.9",
              "vulnerable": true
            },
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              "matchCriteriaId": "DE0C44CA-A1E7-4A78-AEBE-9E40AC8356A3",
              "vulnerable": true
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              "matchCriteriaId": "BBB1EA86-4052-40DC-AAAA-8133DD965699",
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "FileBrowser Quantum is a free, self-hosted, web-based file manager. Prior to 1.3.1-beta and 1.2.2-stable, Stored XSS is possible via share metadata fields (e.g., title, description) that are rendered into HTML for /public/share/\u003chash\u003e without context-aware escaping. The server uses text/template instead of html/template, allowing injected scripts to execute when victims visit the share URL. This vulnerability is fixed in 1.3.1-beta and 1.2.2-stable."
    },
    {
      "lang": "es",
      "value": "FileBrowser Quantum es un gestor de archivos gratuito, autoalojado y basado en web. Antes de 1.3.1-beta y 1.2.2-stable, es posible un XSS Almacenado a trav\u00e9s de campos de metadatos de compartici\u00f3n (p. ej., t\u00edtulo, descripci\u00f3n) que se renderizan en HTML para /public/share/ sin escape sensible al contexto. El servidor utiliza text/template en lugar de html/template, permitiendo que los scripts inyectados se ejecuten cuando las v\u00edctimas visitan la URL de compartici\u00f3n. Esta vulnerabilidad est\u00e1 corregida en 1.3.1-beta y 1.2.2-stable."
    }
  ],
  "id": "CVE-2026-30934",
  "lastModified": "2026-03-18T16:52:51.783",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 8.9,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 2.3,
        "impactScore": 6.0,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
          "version": "3.1"
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        "exploitabilityScore": 2.3,
        "impactScore": 2.7,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
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  },
  "published": "2026-03-10T18:18:53.257",
  "references": [
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      "source": "security-advisories@github.com",
      "tags": [
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    },
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      "tags": [
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    },
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      "tags": [
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  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
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          "value": "CWE-79"
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      "source": "security-advisories@github.com",
      "type": "Primary"
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}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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