Vulnerability-Lookup

CVE-2022-21659 (GCVE-0-2022-21659)

Vulnerability from cvelistv5 – Published: 2022-01-31 20:20 – Updated: 2025-05-05 16:34

Title

Observable Response Discrepancy in Flask-AppBuilder

Summary

Flask-AppBuilder is an application development framework, built on top of the Flask web framework. In affected versions there exists a user enumeration vulnerability. This vulnerability allows for a non authenticated user to enumerate existing accounts by timing the response time from the server when you are logging in. Users are advised to upgrade to version 3.4.4 as soon as possible. There are no known workarounds for this issue.

Severity

5.3 (Medium)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-04-25 15:44 UTC

CWE

n/a
CWE-203 - Observable Discrepancy

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7868 records in the last 180 days details

References

2 references

URL	Tags
https://github.com/dpgaspar/Flask-AppBuilder/secu…	x_refsource_CONFIRM
https://github.com/dpgaspar/Flask-AppBuilder/pull/1775	x_refsource_MISC

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        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}

CLEANSTART-2026-GC08220 (CVE-2022-21659)

Vulnerability from cleanstart – Published: 2026-11-03 00:40 – Updated: 2026-11-02 06:42 – Source website

Summary

Flask-AppBuilder is an application development framework, built on top of the Flask web framework

Details

Security vulnerability affects the apache-superset package. Flask-AppBuilder is an application development framework, built on top of the Flask web framework.

Severity

5.3 (Medium)


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

References

URL

Type

	https://github.com/cleanstart-dev/cleanstart-secu…	ADVISORY
	https://osv.dev/vulnerability/CVE-2022-21659	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2022-21659	WEB

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "CleanStart",
        "name": "apache-superset",
        "purl": "pkg:apk/cleanstart/apache-superset"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2021.40.1-r0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "CleanStart",
        "name": "apache-superset",
        "purl": "pkg:apk/cleanstart/apache-superset"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2021.41.0-r0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "credits": [],
  "database_specific": {},
  "details": "Security vulnerability affects the apache-superset package. Flask-AppBuilder is an application development framework, built on top of the Flask web framework.",
  "id": "CLEANSTART-2026-GC08220",
  "modified": "2026-11-02T06:42:28Z",
  "published": "2026-11-03T00:40:36.533318Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2026/CLEANSTART-2026-GC08220.json"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2022-21659"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-21659"
    }
  ],
  "related": [],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Flask-AppBuilder is an application development framework, built on top of the Flask web framework",
  "upstream": [
    "CVE-2022-21659"
  ]
}

FKIE_CVE-2022-21659

Vulnerability from fkie_nvd - Published: 2022-01-31 21:15 - Updated: 2026-06-17 04:26

Severity

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

Summary

References

URL	Tags
security-advisories@github.com	https://github.com/dpgaspar/Flask-AppBuilder/pull/1775	Patch, Third Party Advisory
security-advisories@github.com	https://github.com/dpgaspar/Flask-AppBuilder/security/advisories/GHSA-wfjw-w6pv-8p7f	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/dpgaspar/Flask-AppBuilder/pull/1775	Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/dpgaspar/Flask-AppBuilder/security/advisories/GHSA-wfjw-w6pv-8p7f	Third Party Advisory

Impacted products

	Vendor	Product	Version
	dpgaspar	flask-appbuilder	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:dpgaspar:flask-appbuilder:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "66F472EA-B2C9-48A3-93B4-8B5CD4CE80BD",
              "versionEndExcluding": "3.4.2",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Flask-AppBuilder is an application development framework, built on top of the Flask web framework. In affected versions there exists a user enumeration vulnerability. This vulnerability allows for a non authenticated user to enumerate existing accounts by timing the response time from the server when you are logging in. Users are advised to upgrade to version 3.4.4 as soon as possible. There are no known workarounds for this issue."
    },
    {
      "lang": "es",
      "value": "Flask-AppBuilder es un marco de desarrollo de aplicaciones, construido sobre el marco web Flask. En las versiones afectadas se presenta una vulnerabilidad de enumeraci\u00f3n de usuarios. Esta vulnerabilidad permite a un usuario no autenticado enumerar las cuentas existentes cronometrando el tiempo de respuesta del servidor cuando est\u00e1 inici\u00e1ndose la sesi\u00f3n. Se recomienda a usuarios actualizar a versi\u00f3n 3.4.4 lo antes posible. No se presentan medidas de mitigaci\u00f3n conocidas para este problema"
    }
  ],
  "id": "CVE-2022-21659",
  "lastModified": "2026-06-17T04:26:42.283",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 5.0,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2022-21659",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-04-25T15:44:49.758400Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2022-01-31T21:15:09.013",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/dpgaspar/Flask-AppBuilder/pull/1775"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/dpgaspar/Flask-AppBuilder/security/advisories/GHSA-wfjw-w6pv-8p7f"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
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        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/dpgaspar/Flask-AppBuilder/pull/1775"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/dpgaspar/Flask-AppBuilder/security/advisories/GHSA-wfjw-w6pv-8p7f"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-203"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    },
    {
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        {
          "lang": "en",
          "value": "CWE-203"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}

GHSA-WFJW-W6PV-8P7F

Vulnerability from github – Published: 2022-02-01 00:47 – Updated: 2025-03-07 19:09

Summary

Observable Response Discrepancy in Flask-AppBuilder

Details

Impact

User enumeration in database authentication in Flask-AppBuilder < 3.4.4. Allows for a non authenticated user to enumerate existing accounts by timing the response time from the server when you are logging in.

Patches

Upgrade to 3.4.4

Workarounds

References

For more information

If you have any questions or comments about this advisory: * Open an issue in example link to repo * Email us at example email address

Severity

5.3 (Medium)


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

6.9 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "Flask-AppBuilder"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.4.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2022-21659"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-203",
      "CWE-204"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-01-31T20:19:12Z",
    "nvd_published_at": "2022-01-31T21:15:00Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\nUser enumeration in database authentication in Flask-AppBuilder  \u003c 3.4.4. Allows for a non authenticated user to enumerate existing accounts by timing the response time from the server when you are logging in.\n\n### Patches\nUpgrade to 3.4.4\n\n### Workarounds\n\n### References\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [example link to repo](http://example.com)\n* Email us at [example email address](mailto:example@example.com)",
  "id": "GHSA-wfjw-w6pv-8p7f",
  "modified": "2025-03-07T19:09:24Z",
  "published": "2022-02-01T00:47:53Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/dpgaspar/Flask-AppBuilder/security/advisories/GHSA-wfjw-w6pv-8p7f"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-21659"
    },
    {
      "type": "WEB",
      "url": "https://github.com/dpgaspar/Flask-AppBuilder/pull/1775"
    },
    {
      "type": "WEB",
      "url": "https://github.com/dpgaspar/Flask-AppBuilder/commit/e2b744c258ff62ece9d5ac7172c3b4644ff4c2fe"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/dpgaspar/Flask-AppBuilder"
    },
    {
      "type": "WEB",
      "url": "https://github.com/dpgaspar/Flask-AppBuilder/commits/v3.4.4"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/flask-appbuilder/PYSEC-2022-24.yaml"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Observable Response Discrepancy in Flask-AppBuilder"
}

GSD-2022-21659

Vulnerability from gsd - Updated: 2023-12-13 01:19

Details

Aliases

CVE-2022-21659

Aliases

CVE-2022-21659

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2022-21659",
    "description": "Flask-AppBuilder is an application development framework, built on top of the Flask web framework. In affected versions there exists a user enumeration vulnerability. This vulnerability allows for a non authenticated user to enumerate existing accounts by timing the response time from the server when you are logging in. Users are advised to upgrade to version 3.4.4 as soon as possible. There are no known workarounds for this issue.",
    "id": "GSD-2022-21659"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2022-21659"
      ],
      "details": "Flask-AppBuilder is an application development framework, built on top of the Flask web framework. In affected versions there exists a user enumeration vulnerability. This vulnerability allows for a non authenticated user to enumerate existing accounts by timing the response time from the server when you are logging in. Users are advised to upgrade to version 3.4.4 as soon as possible. There are no known workarounds for this issue.",
      "id": "GSD-2022-21659",
      "modified": "2023-12-13T01:19:13.967676Z",
      "schema_version": "1.4.0"
    }
  },
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      },
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          }
        ]
      },
      "impact": {
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          },
          {
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        ]
      },
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        "discovery": "UNKNOWN"
      }
    },
    "gitlab.com": {
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          "affected_versions": "All versions before 3.4.2",
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          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
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          ],
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          ],
          "uuid": "ba15b9bb-b8e1-4506-b0a7-2bf2fbbb6595"
        }
      ]
    },
    "nvd.nist.gov": {
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            }
          ]
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              "url": "https://github.com/dpgaspar/Flask-AppBuilder/security/advisories/GHSA-wfjw-w6pv-8p7f"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 5.0,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 1.4
        }
      },
      "lastModifiedDate": "2022-02-07T19:47Z",
      "publishedDate": "2022-01-31T21:15Z"
    }
  }
}

PYSEC-2022-24

Vulnerability from pysec - Published: 2022-01-31 21:15 - Updated: 2022-02-07 21:26

Details

Impacted products

Name	purl
flask-appbuilder	pkg:pypi/flask-appbuilder

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "flask-appbuilder",
        "purl": "pkg:pypi/flask-appbuilder"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.4.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.1.10",
        "0.1.11",
        "0.1.12",
        "0.1.13",
        "0.1.14",
        "0.1.15",
        "0.1.16",
        "0.1.17",
        "0.1.18",
        "0.1.19",
        "0.1.20",
        "0.1.21",
        "0.1.22",
        "0.1.23",
        "0.1.24",
        "0.1.25",
        "0.1.26",
        "0.1.27",
        "0.1.28",
        "0.1.29",
        "0.1.3",
        "0.1.33",
        "0.1.34",
        "0.1.35",
        "0.1.36",
        "0.1.37",
        "0.1.38",
        "0.1.4",
        "0.1.43",
        "0.1.44",
        "0.1.45",
        "0.1.46",
        "0.1.47",
        "0.1.5",
        "0.1.6",
        "0.1.7",
        "0.1.8",
        "0.1.9",
        "0.10.0",
        "0.10.1",
        "0.10.2",
        "0.10.3",
        "0.10.4",
        "0.10.5",
        "0.10.6",
        "0.10.7",
        "0.2.0",
        "0.2.1",
        "0.2.2",
        "0.3.0",
        "0.3.1",
        "0.3.10",
        "0.3.11",
        "0.3.12",
        "0.3.13",
        "0.3.14",
        "0.3.15",
        "0.3.16",
        "0.3.17",
        "0.3.2",
        "0.3.3",
        "0.3.4",
        "0.3.5",
        "0.3.6",
        "0.3.7",
        "0.3.8",
        "0.3.9",
        "0.4.0",
        "0.4.1",
        "0.4.2",
        "0.4.3",
        "0.5.0",
        "0.5.1",
        "0.5.2",
        "0.5.3",
        "0.5.4",
        "0.5.5",
        "0.5.6",
        "0.6.1",
        "0.6.10",
        "0.6.11",
        "0.6.12",
        "0.6.13",
        "0.6.14",
        "0.6.2",
        "0.6.3",
        "0.6.4",
        "0.6.5",
        "0.6.6",
        "0.6.7",
        "0.6.8",
        "0.6.9",
        "0.7.0",
        "0.7.1",
        "0.7.2",
        "0.7.3",
        "0.7.4",
        "0.7.5",
        "0.7.6",
        "0.7.7",
        "0.7.8",
        "0.8.0",
        "0.8.1",
        "0.8.2",
        "0.8.3",
        "0.8.4",
        "0.8.5",
        "0.9.0",
        "0.9.1",
        "0.9.2",
        "0.9.3",
        "1.0.0",
        "1.0.1",
        "1.1.0",
        "1.1.1",
        "1.1.2",
        "1.1.3",
        "1.10.0",
        "1.11.0",
        "1.11.1",
        "1.12.0",
        "1.12.1",
        "1.12.2",
        "1.12.3",
        "1.12.4",
        "1.12.5",
        "1.13.0",
        "1.13.1",
        "1.2.0",
        "1.2.1",
        "1.3.0",
        "1.3.1",
        "1.3.2",
        "1.3.3",
        "1.3.4",
        "1.3.5",
        "1.3.6",
        "1.3.7",
        "1.4.0",
        "1.4.1",
        "1.4.2",
        "1.4.3",
        "1.4.4",
        "1.4.5",
        "1.4.6",
        "1.4.7",
        "1.5.0",
        "1.6.0",
        "1.6.1",
        "1.6.2",
        "1.6.3",
        "1.7.0",
        "1.7.1",
        "1.8.0",
        "1.8.1",
        "1.9.0",
        "1.9.1",
        "1.9.2",
        "1.9.3",
        "1.9.4",
        "1.9.5",
        "1.9.6",
        "2.0.0",
        "2.1.0",
        "2.1.1",
        "2.1.10",
        "2.1.11",
        "2.1.12",
        "2.1.13",
        "2.1.2",
        "2.1.3",
        "2.1.4",
        "2.1.5",
        "2.1.6",
        "2.1.7",
        "2.1.8",
        "2.1.9",
        "2.2.0",
        "2.2.0rc1",
        "2.2.0rc2",
        "2.2.1",
        "2.2.1rc1",
        "2.2.1rc2",
        "2.2.1rc3",
        "2.2.2",
        "2.2.2rc1",
        "2.2.2rc2",
        "2.2.2rc3",
        "2.2.3",
        "2.2.3rc1",
        "2.2.3rc2",
        "2.2.3rc3",
        "2.2.3rc4",
        "2.2.3rc5",
        "2.2.3rc6",
        "2.2.4",
        "2.2.4rc1",
        "2.3.0",
        "2.3.0rc1",
        "2.3.0rc2",
        "2.3.0rc3",
        "2.3.0rc4",
        "2.3.1",
        "2.3.1rc1",
        "2.3.2",
        "2.3.2rc1",
        "2.3.3",
        "2.3.3rc1",
        "2.3.3rc2",
        "2.3.3rc3",
        "2.3.4",
        "2.3.4rc1",
        "3.0.0",
        "3.0.0rc1",
        "3.0.0rc2",
        "3.0.0rc3",
        "3.0.0rc4",
        "3.0.1",
        "3.0.1rc1",
        "3.1.0",
        "3.1.0rc1",
        "3.1.0rc2",
        "3.1.0rc3",
        "3.1.1",
        "3.1.1rc1",
        "3.1.1rc2",
        "3.1.1rc3",
        "3.2.0",
        "3.2.0rc1",
        "3.2.0rc2",
        "3.2.1",
        "3.2.1rc1",
        "3.2.2",
        "3.2.2rc1",
        "3.2.3",
        "3.2.3rc1",
        "3.2.3rc2",
        "3.3.0",
        "3.3.0rc1",
        "3.3.1",
        "3.3.1rc1",
        "3.3.2",
        "3.3.2rc1",
        "3.3.3",
        "3.3.3rc1",
        "3.3.4",
        "3.3.4rc1",
        "3.4.0",
        "3.4.0rc1",
        "3.4.0rc2",
        "3.4.1",
        "3.4.1rc1",
        "3.4.1rc2",
        "3.4.1rc3",
        "3.4.2rc1"
      ]
    }
  ],
  "aliases": [
    "CVE-2022-21659",
    "GHSA-wfjw-w6pv-8p7f"
  ],
  "details": "Flask-AppBuilder is an application development framework, built on top of the Flask web framework. In affected versions there exists a user enumeration vulnerability. This vulnerability allows for a non authenticated user to enumerate existing accounts by timing the response time from the server when you are logging in. Users are advised to upgrade to version 3.4.4 as soon as possible. There are no known workarounds for this issue.",
  "id": "PYSEC-2022-24",
  "modified": "2022-02-07T21:26:59.516513Z",
  "published": "2022-01-31T21:15:00Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/dpgaspar/Flask-AppBuilder/pull/1775"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/dpgaspar/Flask-AppBuilder/security/advisories/GHSA-wfjw-w6pv-8p7f"
    }
  ]
}

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

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

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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-2022-21659 (GCVE-0-2022-21659)

CLEANSTART-2026-GC08220 (CVE-2022-21659)

FKIE_CVE-2022-21659

GHSA-WFJW-W6PV-8P7F

Impact

Patches

Workarounds

References

For more information

GSD-2022-21659

PYSEC-2022-24

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour