Vulnerability-Lookup

CVE-2020-26679 (GCVE-0-2020-26679)

Vulnerability from cvelistv5 – Published: 2021-05-26 11:53 – Updated: 2026-07-09 00:11

Summary

vFairs 3.3 is affected by Insecure Permissions. Any user logged in to a vFairs virtual conference or event can modify any other users profile information or profile picture. After receiving any user's unique identification number and their own, an HTTP POST request can be made update their profile description or supply a new profile image. This can lead to potential cross-site scripting attacks on any user, or upload malicious PHP webshells as "profile pictures." The user IDs can be easily determined by other responses from the API for an event or chat room.

Severity

4.3 (Medium)


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

CWE

Assigner

mitre CNA under the mitre root

CNA scorecard E 29/100 over 2314 records in the last 180 days details

References

3 references

URL	Tags
https://api.vfairs.com/v1/profiles
https://api.vfairs.com/v1/profiles?access_key=
https://www.huntress.com/blog/zero-day-vulnerabil…

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2020-26679

Vulnerability from fkie_nvd - Published: 2021-05-26 12:15 - Updated: 2026-07-09 01:16

Severity

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

Summary

References

URL	Tags
cve@mitre.org	https://api.vfairs.com/v1/profiles	Vendor Advisory
cve@mitre.org	https://api.vfairs.com/v1/profiles?access_key=	Vendor Advisory
cve@mitre.org	https://www.huntress.com/blog/zero-day-vulnerabilities-in-popular-event-management-platforms-could-leave-msps-open-to-attack	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://api.vfairs.com/v1/profiles	Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://api.vfairs.com/v1/profiles?access_key=	Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://www.huntress.com/blog/zero-day-vulnerabilities-in-popular-event-management-platforms-could-leave-msps-open-to-attack	Third Party Advisory

Impacted products

	Vendor	Product	Version
	vfairs	vfairs	3.3

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
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      "lang": "en",
      "value": "vFairs 3.3 is affected by Insecure Permissions. Any user logged in to a vFairs virtual conference or event can modify any other users profile information or profile picture. After receiving any user\u0027s unique identification number and their own, an HTTP POST request can be made update their profile description or supply a new profile image. This can lead to potential cross-site scripting attacks on any user, or upload malicious PHP webshells as \"profile pictures.\" The user IDs can be easily determined by other responses from the API for an event or chat room."
    },
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      "lang": "es",
      "value": "vFairs versi\u00f3n 3.3 est\u00e1 afectado por permisos no seguros.\u0026#xa0;Cualquier usuario que haya iniciado sesi\u00f3n en una conferencia o evento virtual de vFairs puede modificar la informaci\u00f3n de perfil o la imagen de perfil de cualquier otro usuario.\u0026#xa0;Despu\u00e9s de recibir el n\u00famero de identificaci\u00f3n \u00fanico de cualquier usuario y el suyo propio, puede ser realizada una petici\u00f3n HTTP POST para actualizar la descripci\u00f3n de su perfil o proporcionar una nueva imagen de perfil.\u0026#xa0;Esto puede conllevar a posibles ataques de tipo cross-site scripting en cualquier usuario, o cargar webshells PHP maliciosos como \"profile pictures\".\u0026#xa0;Los ID de usuario se pueden determinar f\u00e1cilmente mediante otras respuestas de la API para un evento o sala de chat"
    }
  ],
  "id": "CVE-2020-26679",
  "lastModified": "2026-07-09T01:16:40.937",
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}

GHSA-8XFC-9Q6X-H2XP

Vulnerability from github – Published: 2022-05-24 19:03 – Updated: 2022-07-13 00:00

Details

Severity

4.3 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2020-26679"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-276",
      "CWE-639"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-05-26T12:15:00Z",
    "severity": "MODERATE"
  },
  "details": "vFairs 3.3 is affected by Insecure Permissions. Any user logged in to a vFairs virtual conference or event can modify any other users profile information or profile picture. After receiving any user\u0027s unique identification number and their own, an HTTP POST request can be made update their profile description or supply a new profile image. This can lead to potential cross-site scripting attacks on any user, or upload malicious PHP webshells as \"profile pictures.\" The user IDs can be easily determined by other responses from the API for an event or chat room.",
  "id": "GHSA-8xfc-9q6x-h2xp",
  "modified": "2022-07-13T00:00:50Z",
  "published": "2022-05-24T19:03:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-26679"
    },
    {
      "type": "WEB",
      "url": "https://api.vfairs.com/v1/profiles"
    },
    {
      "type": "WEB",
      "url": "https://api.vfairs.com/v1/profiles?access_key="
    },
    {
      "type": "WEB",
      "url": "https://www.huntress.com/blog/zero-day-vulnerabilities-in-popular-event-management-platforms-could-leave-msps-open-to-attack"
    },
    {
      "type": "WEB",
      "url": "http://vfairs.com"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GSD-2020-26679

Vulnerability from gsd - Updated: 2023-12-13 01:22

Details

Aliases

CVE-2020-26679

Aliases

CVE-2020-26679

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2020-26679",
    "description": "vFairs 3.3 is affected by Insecure Permissions. Any user logged in to a vFairs virtual conference or event can modify any other users profile information or profile picture. After receiving any user\u0027s unique identification number and their own, an HTTP POST request can be made update their profile description or supply a new profile image. This can lead to potential cross-site scripting attacks on any user, or upload malicious PHP webshells as \"profile pictures.\" The user IDs can be easily determined by other responses from the API for an event or chat room.",
    "id": "GSD-2020-26679"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2020-26679"
      ],
      "details": "vFairs 3.3 is affected by Insecure Permissions. Any user logged in to a vFairs virtual conference or event can modify any other users profile information or profile picture. After receiving any user\u0027s unique identification number and their own, an HTTP POST request can be made update their profile description or supply a new profile image. This can lead to potential cross-site scripting attacks on any user, or upload malicious PHP webshells as \"profile pictures.\" The user IDs can be easily determined by other responses from the API for an event or chat room.",
      "id": "GSD-2020-26679",
      "modified": "2023-12-13T01:22:09.308425Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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      "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2020-26679",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "n/a"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "n/a"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "vFairs 3.3 is affected by Insecure Permissions. Any user logged in to a vFairs virtual conference or event can modify any other users profile information or profile picture. After receiving any user\u0027s unique identification number and their own, an HTTP POST request can be made update their profile description or supply a new profile image. This can lead to potential cross-site scripting attacks on any user, or upload malicious PHP webshells as \"profile pictures.\" The user IDs can be easily determined by other responses from the API for an event or chat room."
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "n/a"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "http://vfairs.com",
            "refsource": "MISC",
            "url": "http://vfairs.com"
          },
          {
            "name": "https://api.vfairs.com/v1/profiles",
            "refsource": "MISC",
            "url": "https://api.vfairs.com/v1/profiles"
          },
          {
            "name": "https://api.vfairs.com/v1/profiles?access_key=",
            "refsource": "MISC",
            "url": "https://api.vfairs.com/v1/profiles?access_key="
          },
          {
            "name": "https://www.huntress.com/blog/zero-day-vulnerabilities-in-popular-event-management-platforms-could-leave-msps-open-to-attack",
            "refsource": "MISC",
            "url": "https://www.huntress.com/blog/zero-day-vulnerabilities-in-popular-event-management-platforms-could-leave-msps-open-to-attack"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:vfairs:vfairs:3.3:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2020-26679"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "vFairs 3.3 is affected by Insecure Permissions. Any user logged in to a vFairs virtual conference or event can modify any other users profile information or profile picture. After receiving any user\u0027s unique identification number and their own, an HTTP POST request can be made update their profile description or supply a new profile image. This can lead to potential cross-site scripting attacks on any user, or upload malicious PHP webshells as \"profile pictures.\" The user IDs can be easily determined by other responses from the API for an event or chat room."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-276"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.huntress.com/blog/zero-day-vulnerabilities-in-popular-event-management-platforms-could-leave-msps-open-to-attack",
              "refsource": "MISC",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://www.huntress.com/blog/zero-day-vulnerabilities-in-popular-event-management-platforms-could-leave-msps-open-to-attack"
            },
            {
              "name": "https://api.vfairs.com/v1/profiles?access_key=",
              "refsource": "MISC",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "https://api.vfairs.com/v1/profiles?access_key="
            },
            {
              "name": "https://api.vfairs.com/v1/profiles",
              "refsource": "MISC",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "https://api.vfairs.com/v1/profiles"
            },
            {
              "name": "http://vfairs.com",
              "refsource": "MISC",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "http://vfairs.com"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "SINGLE",
            "availabilityImpact": "NONE",
            "baseScore": 4.0,
            "confidentialityImpact": "NONE",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:L/Au:S/C:N/I:P/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 8.0,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 1.4
        }
      },
      "lastModifiedDate": "2021-06-02T13:48Z",
      "publishedDate": "2021-05-26T12:15Z"
    }
  }
}

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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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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.

Action not permitted

CVE-2020-26679 (GCVE-0-2020-26679)

FKIE_CVE-2020-26679

GHSA-8XFC-9Q6X-H2XP

GSD-2020-26679

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour