FKIE_CVE-2025-27802

Vulnerability from fkie_nvd - Published: 2025-07-28 09:15 - Updated: 2025-11-03 20:18
Severity ?
4.8 (Medium) - CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Summary
The Episerver Content Management System (CMS) by Optimizely was affected by multiple Stored Cross-Site Scripting (XSS) vulnerabilities. This allowed an authenticated attacker to execute malicious JavaScript code in the victim's browser. RTE properties (text fields), which could be used in the "Edit" section of the CMS, allowed the input of arbitrary text. It was possible to input malicious JavaScript code in these properties that would be executed if a user visits the previewed page. Attackers needed at least the role "WebEditor" in order to exploit this issue. Affected products: Version 11.X: EPiServer.CMS.Core (<11.21.4) with EPiServer.CMS.UI (<11.37.5), Version 12.X: EPiServer.CMS.Core (<12.22.1) with EPiServer.CMS.UI (<11.37.3)
References
551230f0-3615-47bd-b7cc-93e92e730bbfhttps://api.nuget.optimizely.com/packages/episerver.cms.core/11.21.4#
551230f0-3615-47bd-b7cc-93e92e730bbfhttps://api.nuget.optimizely.com/packages/episerver.cms.core/12.22.1#
551230f0-3615-47bd-b7cc-93e92e730bbfhttps://r.sec-consult.com/optimizely
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2025/Aug/18
Impacted products
Vendor Product Version
To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Episerver Content Management System (CMS) by Optimizely was affected by multiple Stored Cross-Site Scripting (XSS) vulnerabilities. This allowed an authenticated attacker to execute malicious JavaScript code in the victim\u0027s browser.\n\nRTE properties (text fields), which could be used in the \"Edit\" section of the CMS,\nallowed the input of arbitrary text. It was possible to input malicious JavaScript \ncode in these properties that would be executed if a user visits the previewed \npage. Attackers needed at least the role \"WebEditor\" in order to exploit this issue.\n\nAffected products: Version 11.X: EPiServer.CMS.Core (\u003c11.21.4) with EPiServer.CMS.UI (\u003c11.37.5), Version 12.X: EPiServer.CMS.Core (\u003c12.22.1) with EPiServer.CMS.UI (\u003c11.37.3)"
    },
    {
      "lang": "es",
      "value": "Episerver Content Management System (CMS) by Optimizely se vio afectado por m\u00faltiples vulnerabilidades de Cross-Site Scripting (XSS) almacenado. Esto permiti\u00f3 que un atacante autenticado ejecutara c\u00f3digo JavaScript malicioso en el navegador de la v\u00edctima. Las propiedades RTE (campos de texto), que se pod\u00edan usar en la secci\u00f3n \"Edit\" del CMS, permit\u00edan la introducci\u00f3n de texto arbitrario. Era posible introducir c\u00f3digo JavaScript malicioso en estas propiedades, que se ejecutaba si un usuario visitaba la p\u00e1gina previsualizada. Los atacantes necesitaban al menos el rol \"WebEditor\" para explotar este problema. Productos afectados: Versi\u00f3n 11.X: EPiServer.CMS.Core (\u0026lt;11.21.4) con EPiServer.CMS.UI (\u0026lt;11.37.5), Versi\u00f3n 12.X: EPiServer.CMS.Core (\u0026lt;12.22.1) con EPiServer.CMS.UI (\u0026lt;11.37.3)."
    }
  ],
  "id": "CVE-2025-27802",
  "lastModified": "2025-11-03T20:18:07.267",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.8,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "HIGH",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.7,
        "impactScore": 2.7,
        "source": "551230f0-3615-47bd-b7cc-93e92e730bbf",
        "type": "Secondary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 4.8,
          "baseSeverity": "MEDIUM",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "HIGH",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "LOW",
          "subIntegrityImpact": "LOW",
          "userInteraction": "PASSIVE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:L/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "LOW",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "LOW",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "551230f0-3615-47bd-b7cc-93e92e730bbf",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-07-28T09:15:34.747",
  "references": [
    {
      "source": "551230f0-3615-47bd-b7cc-93e92e730bbf",
      "url": "https://api.nuget.optimizely.com/packages/episerver.cms.core/11.21.4#"
    },
    {
      "source": "551230f0-3615-47bd-b7cc-93e92e730bbf",
      "url": "https://api.nuget.optimizely.com/packages/episerver.cms.core/12.22.1#"
    },
    {
      "source": "551230f0-3615-47bd-b7cc-93e92e730bbf",
      "url": "https://r.sec-consult.com/optimizely"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://seclists.org/fulldisclosure/2025/Aug/18"
    }
  ],
  "sourceIdentifier": "551230f0-3615-47bd-b7cc-93e92e730bbf",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "551230f0-3615-47bd-b7cc-93e92e730bbf",
      "type": "Secondary"
    }
  ]
}


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