Vulnerabilities in pkg:pypi/Flask-Admin

PACKAGE
Advisory Identifier: GHSA-894g-6j7q-2hx6
Share
Advisory Summary

CVE-2018-16516 is a MODERATE (CVSS 6.1) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Flask Admin libraries in the PyPI ecosystem. The issue involves flask-admin cross-site scripting vulnerability. Remediation is available by upgrading affected packages to version 1.5.3.

1 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:pypi/Flask-Admin

1 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:pypi/Flask-Admin. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-894g-6j7q-2hx6 CVE-2018-16516 MODERATE Flask-Admin Cross-site Scripting vulnerability

CVE-2018-16516 at a Glance

CVE Identifier CVE-2018-16516
GHSA Identifier GHSA-894g-6j7q-2hx6
Severity MODERATE
CVSS v3.1 Base Score 6.1
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Flask Admin
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 6.1

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction Required (UI:R)
Scope Changed (S:C)
Confidentiality Low (C:L)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2018-16516

To remediate this vulnerability, upgrade all affected Flask Admin dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

Flask-Admin fixed: 1.5.3 
pip install Flask-Admin>=1.5.3
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show Flask-Admin

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2018-16516, inspect your installed packages using pip:

pip show Flask-Admin

Analyze the terminal output to locate any version of Flask Admin in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.5.3), your application is affected.

Note: The pip show Flask-Admin command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), where the product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. In Flask Admin, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

helpers.py in Flask-Admin 1.5.2 has Reflected XSS via a crafted URL.

CVE-2018-16516 Affected Flask Admin Versions

1 component(s)
Fixed Versions:
1.5.3
Product / Package Ecosystem Affected Versions Fixed Version
Flask-Admin
pypi/Flask-Admin
PyPI
< 1.5.3
1.5.3

References

NVD — CVE-2018-16516 NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-16516
Flask Admin Source Repository REPOSITORY
https://github.com/flask-admin/flask-admin/pull/1699
Security Fix Commit FIX COMMIT
https://github.com/flask-admin/flask-admin/commit/8af10e0b022464fdcb2da3d0ea5bbd2f11c0acd1
GitHub Advisory / Wiki ADVISORY
https://github.com/advisories/GHSA-894g-6j7q-2hx6
Flask Admin Source Repository REPOSITORY
https://github.com/flask-admin/flask-admin
Flask Admin Release RELEASE
https://github.com/flask-admin/flask-admin/releases/tag/v1.5.3
Flask Admin Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/flask-admin/PYSEC-2018-54.yaml
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UJIYCWIH3BRLI2QNC53CQXLKVP27X7EH
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZU2VKULURVXEU4YFTLMBQGYMPSXQ4MBN

Frequently Asked Questions

What is CVE-2018-16516?
CVE-2018-16516 is a security vulnerability in Flask Admin involving Flask-Admin Cross-site Scripting vulnerability under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Flask Admin versions are affected?
Affected versions include releases prior to 1.5.3 across affected packages: Flask-Admin.
What version fixes CVE-2018-16516?
Upgrading to 1.5.3 (or the latest patched release for your respective branch) resolves the vulnerability.
Is Flask-Admin affected?
Yes, Flask-Admin is affected in releases prior to 1.5.3. Upgrade your dependency to 1.5.3 or later.
What is the CVSS score of CVE-2018-16516?
CVE-2018-16516 has a CVSS v3.1 base score of 6.1 (MODERATE) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
What CWE is associated with CVE-2018-16516?
CVE-2018-16516 is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.).
How can I check PyPI dependencies for CVE-2018-16516?
Run the dependency tree command: 'pip show Flask-Admin'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-894g-6j7q-2hx6",
  "modified" : "2024-09-20T17:45:11Z",
  "published" : "2018-12-19T19:23:52Z",
  "aliases" : [ "CVE-2018-16516" ],
  "summary" : "Flask-Admin Cross-site Scripting vulnerability",
  "details" : "helpers.py in Flask-Admin 1.5.2 has Reflected XSS via a crafted URL.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "Flask-Admin"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.5.3"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2018-16516"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/flask-admin/flask-admin/pull/1699"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/flask-admin/flask-admin/commit/8af10e0b022464fdcb2da3d0ea5bbd2f11c0acd1"
  }, {
    "type" : "ADVISORY",
    "url" : "https://github.com/advisories/GHSA-894g-6j7q-2hx6"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/flask-admin/flask-admin"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/flask-admin/flask-admin/releases/tag/v1.5.3"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/flask-admin/PYSEC-2018-54.yaml"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UJIYCWIH3BRLI2QNC53CQXLKVP27X7EH"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZU2VKULURVXEU4YFTLMBQGYMPSXQ4MBN"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2020-06-16T21:24:59Z",
    "nvd_published_at" : null
  }
}