FKIE_CVE-2025-57520

Vulnerability from fkie_nvd - Published: 2025-09-10 17:15 - Updated: 2025-09-16 17:35
Severity ?
6.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Summary
A Cross Site Scripting (XSS) vulnerability exists in Decap CMS thru 3.8.3. Input fields such as body, tags, title, and description are not properly sanitized before being rendered in the content preview pane. This enables an attacker to inject arbitrary JavaScript which executes whenever a user views the preview panel. The vulnerability affects multiple input vectors and does not require user interaction beyond viewing the affected content.
References
cve@mitre.orghttps://github.com/decaporg/decap-cmsProduct
cve@mitre.orghttps://onurcangenc.com.tr/blog/decap-cms-xss-analysisBroken Link
cve@mitre.orghttps://onurcangenc.com.tr/posts/cve-2025-57520--stored-xss-in-decap-cms-3-8-3/Exploit, Third Party Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0https://onurcangenc.com.tr/posts/cve-2025-57520--stored-xss-in-decap-cms-3-8-3/Exploit, Third Party Advisory
Impacted products
Vendor Product Version
techhub.p-m decap_cms *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:techhub.p-m:decap_cms:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "0D80DB1B-4F84-422E-A597-500A46DAA9B7",
              "versionEndIncluding": "3.8.3",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A Cross Site Scripting (XSS) vulnerability exists in Decap CMS thru 3.8.3. Input fields such as body, tags, title, and description are not properly sanitized before being rendered in the content preview pane. This enables an attacker to inject arbitrary JavaScript which executes whenever a user views the preview panel. The vulnerability affects multiple input vectors and does not require user interaction beyond viewing the affected content."
    },
    {
      "lang": "es",
      "value": "Existe una vulnerabilidad de Cross Site Scripting (XSS) en Decap CMS hasta la versi\u00f3n 3.8.3. Los campos de entrada como cuerpo, etiquetas, t\u00edtulo y descripci\u00f3n no se sanean correctamente antes de ser renderizados en el panel de vista previa del contenido. Esto permite a un atacante inyectar JavaScript arbitrario que se ejecuta cada vez que un usuario ve el panel de vista previa. La vulnerabilidad afecta a m\u00faltiples vectores de entrada y no requiere interacci\u00f3n del usuario m\u00e1s all\u00e1 de ver el contenido afectado."
    }
  ],
  "id": "CVE-2025-57520",
  "lastModified": "2025-09-16T17:35:50.310",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.1,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 2.7,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-09-10T17:15:33.537",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Product"
      ],
      "url": "https://github.com/decaporg/decap-cms"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Broken Link"
      ],
      "url": "https://onurcangenc.com.tr/blog/decap-cms-xss-analysis"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://onurcangenc.com.tr/posts/cve-2025-57520--stored-xss-in-decap-cms-3-8-3/"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://onurcangenc.com.tr/posts/cve-2025-57520--stored-xss-in-decap-cms-3-8-3/"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}


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