CVE-2017-12794: Django Cross-Site Scripting Vulnerability

MODERATE
Advisory Identifier: GHSA-9r8w-6x8c-6jr9
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CVSS 6.1
CWE-79
Published
Advisory Summary

CVE-2017-12794 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 libraries in the PyPI ecosystem. The issue involves django vulnerable to xss on 500 pages. Remediation is available by upgrading affected packages to version 1.10.8, 1.11.5.

CVE-2017-12794 at a Glance

CVE Identifier CVE-2017-12794
GHSA Identifier GHSA-9r8w-6x8c-6jr9
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
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-2017-12794

To remediate this vulnerability, upgrade all affected Django 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 fixed: 1.10.8 
pip install Django>=1.10.8
Django fixed: 1.11.5 
pip install Django>=1.11.5
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

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2017-12794, inspect your installed packages using pip:

pip show Django

Analyze the terminal output to locate any version of Django in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.10.8), your application is affected.

Note: The pip show Django 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, 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

In Django 1.10.x before 1.10.8 and 1.11.x before 1.11.5, HTML autoescaping was disabled in a portion of the template for the technical 500 debug page. Given the right circumstances, this allowed a cross-site scripting attack. This vulnerability shouldn't affect most production sites since you shouldn't run with `DEBUG = True` (which makes this page accessible) in your production settings.

CVE-2017-12794 Affected Django Versions

2 component(s)
Fixed Versions:
1.10.81.11.5
Product / Package Ecosystem Affected Versions Fixed Version
Django
pypi/Django
PyPI
≥ 1.10a1
< 1.10.8
1.10.8
Django
pypi/Django
PyPI
≥ 1.11a1
< 1.11.5
1.11.5

References

NVD — CVE-2017-12794 NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-12794
Security Fix Commit FIX COMMIT
https://github.com/django/django/commit/58e08e80e362db79eb0fd775dc81faad90dca47a
Security Fix Commit FIX COMMIT
https://github.com/django/django/commit/e35a0c56086924f331e9422daa266e907a4784cc
GitHub Advisory / Wiki ADVISORY
https://github.com/advisories/GHSA-9r8w-6x8c-6jr9
Django Source Repository REPOSITORY
https://github.com/django/django
Django Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2017-44.yaml
usn.ubuntu.com/3559-1 WEB
https://usn.ubuntu.com/3559-1
Django Security Information SECURITY
https://web.archive.org/web/20170927072701/http://www.securitytracker.com/id/1039264
Django Security Information SECURITY
https://web.archive.org/web/20200227150819/http://www.securityfocus.com/bid/100643
Django Release RELEASE
https://www.djangoproject.com/weblog/2017/sep/05/security-releases

Frequently Asked Questions

What is CVE-2017-12794?
CVE-2017-12794 is a security vulnerability in Django involving Django vulnerable to XSS on 500 pages under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Django versions are affected?
Affected versions include releases prior to 1.10.8, 1.11.5 across affected packages: Django.
What version fixes CVE-2017-12794?
Upgrading to 1.10.8, 1.11.5 (or the latest patched release for your respective branch) resolves the vulnerability.
Is Django affected?
Yes, Django is affected in releases prior to 1.10.8, 1.11.5. Upgrade your dependency to 1.10.8, 1.11.5 or later.
What is the CVSS score of CVE-2017-12794?
CVE-2017-12794 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-2017-12794?
CVE-2017-12794 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-2017-12794?
Run the dependency tree command: 'pip show Django'. 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-9r8w-6x8c-6jr9",
  "modified" : "2024-09-18T15:51:10Z",
  "published" : "2019-01-04T17:50:34Z",
  "aliases" : [ "CVE-2017-12794" ],
  "summary" : "Django vulnerable to XSS on 500 pages",
  "details" : "In Django 1.10.x before 1.10.8 and 1.11.x before 1.11.5, HTML autoescaping was disabled in a portion of the template for the technical 500 debug page. Given the right circumstances, this allowed a cross-site scripting attack. This vulnerability shouldn't affect most production sites since you shouldn't run with `DEBUG = True` (which makes this page accessible) in your production settings.",
  "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"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
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      }, {
        "fixed" : "1.10.8"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "Django"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
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      }, {
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      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2017-12794"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/django/django/commit/58e08e80e362db79eb0fd775dc81faad90dca47a"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/django/django/commit/e35a0c56086924f331e9422daa266e907a4784cc"
  }, {
    "type" : "ADVISORY",
    "url" : "https://github.com/advisories/GHSA-9r8w-6x8c-6jr9"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/django/django"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2017-44.yaml"
  }, {
    "type" : "WEB",
    "url" : "https://usn.ubuntu.com/3559-1"
  }, {
    "type" : "WEB",
    "url" : "https://web.archive.org/web/20170927072701/http://www.securitytracker.com/id/1039264"
  }, {
    "type" : "WEB",
    "url" : "https://web.archive.org/web/20200227150819/http://www.securityfocus.com/bid/100643"
  }, {
    "type" : "WEB",
    "url" : "https://www.djangoproject.com/weblog/2017/sep/05/security-releases"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2020-06-16T21:29:31Z",
    "nvd_published_at" : null
  }
}