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MEDIUM severity

Django Allows Redirect via Data URLGHSA-78vx-ggch-wghm

MEDIUMFix: django/django@4dea488

GHSA-78vx-ggch-wghm is a medium-severity (CVSS 6.1) Cross-site Scripting (XSS) vulnerability in django. A fix is available for django — see the affected versions and patch details below.

Also known asCVE-2012-3442PYSEC-2012-2
Published
Updated
Affected
2 pkgs
Patched
2 / 2
Exploits
None indexed
Exploitation data as of Nov 6, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
2.1%probability of exploitation in next 30 days
Lower Risk-0.02%
Lower risk than most CVEs81th percentile — riskier than 81% of all scored CVEsHighest risk
0.00%0.86%1.72%2.58%0.5%2.1%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

2 pkgs affected
🐍django🐍django

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.

Description

The (1) django.http.HttpResponseRedirect and (2) django.http.HttpResponsePermanentRedirect classes in Django before 1.3.2 and 1.4.x before 1.4.1 do not validate the scheme of a redirect target, which might allow remote attackers to conduct cross-site scripting (XSS) attacks via a data: URL.

Affected Packages

2 total 2 fixed
EcosystemPackageVulnerable rangeFix
🐍PyPIdjangoall versions1.3.2pip install --upgrade 'django==1.3.2'
🐍PyPIdjango≥ 1.4&&< 1.4.11.4.1pip install --upgrade 'django==1.4.1'

Affected Products

1 product · 2 configurations
Application
djangodjangoproject
< 1.3.2
1 version
1.4

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for django, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update django to 1.3.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-78vx-ggch-wghm is resolved across your whole dependency graph.

  3. Workarounds

    Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Frequently Asked Questions

The (1) `django.http.HttpResponseRedirect` and (2) `django.http.HttpResponsePermanentRedirect` classes in Django before 1.3.2 and 1.4.x before 1.4.1 do not validate the scheme of a redirect target, which might allow remote attackers to conduct cross-site scripting (XSS) attacks via a `data:` URL.
O3 Security · Impact-Aware SCA

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Django Allows Redirect via Data URL (Medium 6.1)