CVE-2021-33203 Path Traversal in Django
Staff members can exploit Django admindocs to check existence of arbitrary files, potentially reading contents if templates are customized.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-33203?
CVE-2021-33203 is a medium-severity path traversal vulnerability in Djangoproject Django, published on 8 Jun 2021. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Django before 2.2.24, 3.x before 3.1.12, and 3.2.x before 3.2.4 has a potential directory traversal via django.contrib.admindocs. Staff members could use the TemplateDetailView view to check the existence of arbitrary files. Additionally, if (and only if) the default admindocs templates have been customized by application developers to also show file contents, then not only the existence but also the file contents would have been exposed. In other words, there is directory traversal outside of the template root directories.
Weakness: CWE-22
Which versions are affected by CVE-2021-33203?
8 open source packages ship an affected version, including django and Django. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
django Bitnami | All versions | 2.2.24, 3.1.12, 3.2.4 |
django PyPI | All versions | 2.2.24, 3.1.12, 3.2.4 |
django PyPI | All versions | 2.2.24 |
django PyPI | From 3.0 | 3.1.12 |
django PyPI | From 3.2 | 3.2.4 |
Django PyPI | All versions | 2.2.24 |
2 more packages
Django PyPI | From 3.0 | 3.1.12 |
Django PyPI | From 3.2 | 3.2.4 |
Products include Djangoproject Django, Fedoraproject Fedora.
How do I fix CVE-2021-33203?
Upgrade django to a fixed version for your release line: 2.2.24, 3.1.12 or 3.2.4.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2021-33203 being exploited?
There is no known exploitation of CVE-2021-33203 in the wild and no public exploit code.
Other vulnerabilities in Djangoproject Django
- CVE-2026-4277 Privilege abuse in GenericInlineModelAdmin
- CVE-2024-53908 Django SQL injection in HasKey(lhs, rhs) on Oracle
- CVE-2024-42005 Django SQL injection vulnerability
- CVE-2023-31047 Django bypasses validation when using one form field to upload multiple files
- CVE-2022-34265 Django `Trunc()` and `Extract()` database functions vulnerable to SQL Injection
Sources
Also known as BIT-django-2021-33203, DEBIAN-CVE-2021-33203, GHSA-68w8-qjq3-2gfm, PYSEC-2021-98, UBUNTU-CVE-2021-33203, USN-4975-2.