Vulnerability-Lookup

FKIE_CVE-2021-44043

Vulnerability from fkie_nvd - Published: 2021-12-14 18:15 - Updated: 2026-06-17 04:11

Severity

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

Summary

An issue was discovered in UiPath App Studio 21.4.4. There is a persistent XSS vulnerability in the file-upload functionality for uploading icons when attempting to create new Apps. An attacker with minimal privileges in the application can build their own App and upload a malicious file containing an XSS payload, by uploading an arbitrary file and modifying the MIME type in a subsequent HTTP request. This then allows the file to be stored and retrieved from the server by other users in the same organization.

References

URL	Tags
cve@mitre.org	https://docs.uipath.com/apps/v2021.10/docs/2021-10-1	Release Notes, Vendor Advisory
cve@mitre.org	https://docs.uipath.com/robot/docs/uipath-assistant	Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://docs.uipath.com/apps/v2021.10/docs/2021-10-1	Release Notes, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://docs.uipath.com/robot/docs/uipath-assistant	Vendor Advisory

Impacted products

	Vendor	Product	Version
	uipath	app_studio	21.4.4

JSON

To clipboard

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  "affected": [
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          "product": "n/a",
          "vendor": "n/a",
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      "value": "An issue was discovered in UiPath App Studio 21.4.4. There is a persistent XSS vulnerability in the file-upload functionality for uploading icons when attempting to create new Apps. An attacker with minimal privileges in the application can build their own App and upload a malicious file containing an XSS payload, by uploading an arbitrary file and modifying the MIME type in a subsequent HTTP request. This then allows the file to be stored and retrieved from the server by other users in the same organization."
    },
    {
      "lang": "es",
      "value": "Se ha detectado un problema en UiPath App Studio versi\u00f3n 21.4.4. Se presenta  una vulnerabilidad de tipo XSS persistente en la funcionalidad file-upload para subir iconos al intentar crear nuevas Apps. Un atacante con privilegios m\u00ednimos en la aplicaci\u00f3n puede crear su propia App y subir un archivo malicioso que contenga una carga \u00fatil de tipo XSS, al subir un archivo arbitrario y modificando el tipo MIME en una petici\u00f3n HTTP posterior. Esto permite entonces que el archivo sea almacenado y recuperado del servidor por otros usuarios de la misma organizaci\u00f3n"
    }
  ],
  "id": "CVE-2021-44043",
  "lastModified": "2026-06-17T04:11:50.493",
  "metrics": {
    "cvssMetricV2": [
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        "baseSeverity": "LOW",
        "cvssData": {
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          "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": [
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        "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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        "impactScore": 2.7,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  "published": "2021-12-14T18:15:08.710",
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      "tags": [
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        "Vendor Advisory"
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      "url": "https://docs.uipath.com/apps/v2021.10/docs/2021-10-1"
    },
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      "url": "https://docs.uipath.com/robot/docs/uipath-assistant"
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  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2021-44043 (GCVE-0-2021-44043)

Vulnerability from cvelistv5 – Published: 2021-12-14 17:50 – Updated: 2024-08-04 04:10

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

2 references

URL	Tags
https://docs.uipath.com/robot/docs/uipath-assistant	x_refsource_MISC
https://docs.uipath.com/apps/v2021.10/docs/2021-10-1	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

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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.