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CVE-2026-27973

Estado: AnalizadaMedia (4.8)—

Audiobookshelf is a self-hosted audiobook and podcast server. A stored cross-site scripting (XSS) vulnerability exists in versions prior to 0.12.0-beta of the Audiobookshelf mobile application that allows arbitrary JavaScript execution through malicious library metadata. Attackers with library modification privileges can execute code in victim users' browsers/WebViews, potentially leading to session hijacking, data exfiltration, and unauthorized access to native device APIs. The issue is fixed in audiobookshelf-app version 0.12.0-beta, corresponding to audiobookshelf version 2.12.0.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (2)

Audiobookshelf — AudiobookshelfAudiobookshelf — Audiobookshelf Mobile APP

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-27973",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-27973",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-02-26T14:45:12.893288Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 4,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.7,
        "exploitabilityScore": 1
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 4.8,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.7,
        "exploitabilityScore": 1.7
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "advplyr",
          "product": "audiobookshelf",
          "versions": [
            {
              "status": "affected",
              "version": "< 2.12.0"
            }
          ]
        },
        {
          "vendor": "advplyr",
          "product": "audiobookshelf-app",
          "versions": [
            {
              "status": "affected",
              "version": "<  0.12.0-beta"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-02-26T02:16:24.553",
  "references": [
    {
      "url": "https://github.com/advplyr/audiobookshelf-app/commit/b2c2b625e3cf586562397f4c02e38059f2b8ef5c",
      "tags": [
        "Patch"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/advplyr/audiobookshelf/security/advisories/GHSA-2433-p93m-xhhg",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Audiobookshelf is a self-hosted audiobook and podcast server. A stored cross-site scripting (XSS) vulnerability exists in versions prior to 0.12.0-beta of the Audiobookshelf mobile application that allows arbitrary JavaScript execution through malicious library metadata. Attackers with library modification privileges can execute code in victim users' browsers/WebViews, potentially leading to session hijacking, data exfiltration, and unauthorized access to native device APIs. The issue is fixed in audiobookshelf-app version 0.12.0-beta, corresponding to audiobookshelf version 2.12.0."
    },
    {
      "lang": "es",
      "value": "Audiobookshelf es un servidor de audiolibros y podcasts autoalojado. Existe una vulnerabilidad de cross-site scripting (XSS) almacenado en versiones anteriores a la 0.12.0-beta de la aplicación móvil Audiobookshelf que permite la ejecución arbitraria de JavaScript a través de metadatos de biblioteca maliciosos. Atacantes con privilegios de modificación de biblioteca pueden ejecutar código en los navegadores/WebViews de los usuarios víctimas, lo que podría llevar al secuestro de sesión, la exfiltración de datos y el acceso no autorizado a las API de dispositivos nativos. El problema está solucionado en la versión 0.12.0-beta de audiobookshelf-app, correspondiente a la versión 2.12.0 de audiobookshelf."
    }
  ],
  "lastModified": "2026-06-17T10:27:59.870",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:audiobookshelf:audiobookshelf:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "018123B2-0D17-47FF-B878-D2FDCAF2BAD7",
              "versionEndExcluding": "2.12.0"
            },
            {
              "criteria": "cpe:2.3:a:audiobookshelf:audiobookshelf_mobile_app:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "BB5F33E7-D91F-4887-9CA4-59CF349DC460",
              "versionEndExcluding": "0.12.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security-advisories@github.com"
}