Vulnerability-Lookup

FKIE_CVE-2021-23881

Vulnerability from fkie_nvd - Published: 2021-02-10 11:15 - Updated: 2026-06-17 03:38

Severity

4.8 (Medium) - CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
4.8 (Medium) - CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Summary

A stored cross site scripting vulnerability in ePO extension of McAfee Endpoint Security (ENS) prior to 10.7.0 February 2021 Update allows an ENS ePO administrator to add a script to a policy event which will trigger the script to be run through a browser block page when a local non-administrator user triggers the policy.

References

	URL	Tags
	trellixpsirt@trellix.com	https://kc.mcafee.com/corporate/index?page=content&id=SB10345	Broken Link, Vendor Advisory
	af854a3a-2127-422b-91ae-364da2661108	https://kc.mcafee.com/corporate/index?page=content&id=SB10345	Broken Link, Vendor Advisory

Impacted products

	Vendor	Product	Version
	mcafee	endpoint_security	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Endpoint Security (ENS) for Windows",
          "vendor": "McAfee LLC",
          "versions": [
            {
              "lessThan": "10.7.0 February 2021",
              "status": "affected",
              "version": "10.7.x",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "trellixpsirt@trellix.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:mcafee:endpoint_security:*:*:*:*:*:windows:*:*",
              "matchCriteriaId": "CA4CEE25-A297-4D69-8CF8-5425875B206A",
              "versionEndExcluding": "10.7.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A stored cross site scripting vulnerability in ePO extension of McAfee Endpoint Security (ENS) prior to 10.7.0 February 2021 Update allows an ENS ePO administrator to add a script to a policy event which will trigger the script to be run through a browser block page when a local non-administrator user triggers the policy."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de tipo cross site scripting almacenado en la extensi\u00f3n ePO de McAfee Endpoint Security (ENS) versiones anteriores a 10.7.0 actualizaci\u00f3n de Febrero de 2021, permite a un administrador de ePO de ENS agregar un script a un evento de pol\u00edtica que desencadenar\u00e1 el script para que sea ejecutado mediante una p\u00e1gina de bloqueo del navegador cuando un usuario local que no es administrador activa la pol\u00edtica"
    }
  ],
  "id": "CVE-2021-23881",
  "lastModified": "2026-06-17T03:38:58.510",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "LOW",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "NONE",
          "baseScore": 3.5,
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 6.8,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": true
      }
    ],
    "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": "trellixpsirt@trellix.com",
        "type": "Secondary"
      },
      {
        "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": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-02-10T11:15:13.177",
  "references": [
    {
      "source": "trellixpsirt@trellix.com",
      "tags": [
        "Broken Link",
        "Vendor Advisory"
      ],
      "url": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10345"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Broken Link",
        "Vendor Advisory"
      ],
      "url": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10345"
    }
  ],
  "sourceIdentifier": "trellixpsirt@trellix.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "trellixpsirt@trellix.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2021-23881 (GCVE-0-2021-23881)

Vulnerability from cvelistv5 – Published: 2021-02-10 10:30 – Updated: 2024-09-17 01:41

Title

Stored Cross Site Scripting in ENS

Summary

Severity

4.8 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

CWE

CWE-79 - Cross-site Scripting (XSS)

Assigner

trellix mitre root

References

1 reference

URL	Tags
https://kc.mcafee.com/corporate/index?page=conten…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
McAfee LLC	Endpoint Security (ENS) for Windows	Affected: 10.7.x , < 10.7.0 February 2021 (custom)

Date Public

2021-02-10 00:00

Show details on NVD website

JSON

To clipboard

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          "dateUpdated": "2024-08-03T19:14:09.233Z",
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      ],
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        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.8,
            "baseSeverity": "MEDIUM",
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            "integrityImpact": "LOW",
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            "userInteraction": "REQUIRED",
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      ],
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      ],
      "source": {
        "discovery": "INTERNAL"
      },
      "title": "Stored Cross Site Scripting in ENS",
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            "vendor_data": [
              {
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                    {
                      "product_name": "Endpoint Security (ENS) for Windows",
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.