CVE-2019-15486: Django js reverse Cross-Site Scripting Vulnerability

MODERATE
Advisory Identifier: GHSA-vx6v-2rg6-865h
Share
CVSS 6.1
CWE-79
Published
Advisory Summary

CVE-2019-15486 is a MODERATE (CVSS 6.1) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Django js reverse libraries in the PyPI ecosystem. The issue involves cross-site scripting in django-js-reverse. Remediation is available by upgrading affected packages to version 0.9.1.

CVE-2019-15486 at a Glance

CVE Identifier CVE-2019-15486
GHSA Identifier GHSA-vx6v-2rg6-865h
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 Django js reverse
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-2019-15486

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

django-js-reverse fixed: 0.9.1 
pip install django-js-reverse>=0.9.1
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 django-js-reverse

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2019-15486, inspect your installed packages using pip:

pip show django-js-reverse

Analyze the terminal output to locate any version of Django js reverse in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.9.1), your application is affected.

Note: The pip show django-js-reverse 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 Django js reverse, 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

django-js-reverse (aka Django JS Reverse) before 0.9.1 has XSS via js_reverse_inline.

CVE-2019-15486 Affected Django js reverse Versions

1 component(s)
Fixed Versions:
0.9.1
Product / Package Ecosystem Affected Versions Fixed Version
django-js-reverse
pypi/django-js-reverse
PyPI
< 0.9.1
0.9.1

References

NVD — CVE-2019-15486 NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-15486
Django js reverse Source Repository REPOSITORY
https://github.com/ierror/django-js-reverse/pull/81
Security Fix Commit FIX COMMIT
https://github.com/ierror/django-js-reverse/commit/78d6aff2276f2d341f643b095515f8aaba5e67c2
Security Fix Commit FIX COMMIT
https://github.com/ierror/django-js-reverse/commit/a3b57d1e4424e2fadabcd526d170c4868d55159c
GitHub Advisory / Wiki ADVISORY
https://github.com/advisories/GHSA-vx6v-2rg6-865h
Django js reverse Source Repository REPOSITORY
https://github.com/ierror/django-js-reverse
Django js reverse Source Repository REPOSITORY
https://github.com/ierror/django-js-reverse/compare/v0.9.0...v0.9.1
Django js reverse Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/django-js-reverse/PYSEC-2019-19.yaml

Frequently Asked Questions

What is CVE-2019-15486?
CVE-2019-15486 is a security vulnerability in Django js reverse involving Cross-site Scripting in django-js-reverse under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Django js reverse versions are affected?
Affected versions include releases prior to 0.9.1 across affected packages: django-js-reverse.
What version fixes CVE-2019-15486?
Upgrading to 0.9.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is django-js-reverse affected?
Yes, django-js-reverse is affected in releases prior to 0.9.1. Upgrade your dependency to 0.9.1 or later.
What is the CVSS score of CVE-2019-15486?
CVE-2019-15486 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-2019-15486?
CVE-2019-15486 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-2019-15486?
Run the dependency tree command: 'pip show django-js-reverse'. 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-vx6v-2rg6-865h",
  "modified" : "2024-09-16T21:48:51Z",
  "published" : "2019-08-27T17:39:33Z",
  "aliases" : [ "CVE-2019-15486" ],
  "summary" : "Cross-site Scripting in django-js-reverse",
  "details" : "django-js-reverse (aka Django JS Reverse) before 0.9.1 has XSS via js_reverse_inline.",
  "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" : "django-js-reverse"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.9.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2019-15486"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/ierror/django-js-reverse/pull/81"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/ierror/django-js-reverse/commit/78d6aff2276f2d341f643b095515f8aaba5e67c2"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/ierror/django-js-reverse/commit/a3b57d1e4424e2fadabcd526d170c4868d55159c"
  }, {
    "type" : "ADVISORY",
    "url" : "https://github.com/advisories/GHSA-vx6v-2rg6-865h"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/ierror/django-js-reverse"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/ierror/django-js-reverse/compare/v0.9.0...v0.9.1"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/django-js-reverse/PYSEC-2019-19.yaml"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2019-08-27T17:04:03Z",
    "nvd_published_at" : "2019-08-23T13:15:00Z"
  }
}