CVE-2021-45452 Directory-traversal in Django
Attackers can exploit directory traversal in Django's Storage.save method via crafted filenames to read or modify files outside the intended directory.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-45452?
CVE-2021-45452 is a medium-severity path traversal vulnerability in Djangoproject Django, published on 4 Jan 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Storage.save in Django 2.2 before 2.2.26, 3.2 before 3.2.11, and 4.0 before 4.0.1 allows directory traversal if crafted filenames are directly passed to it.
Weakness: CWE-22
Which versions are affected by CVE-2021-45452?
8 open source packages ship an affected version, including django and Django. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
django Bitnami | From 2.2.0 | 2.2.26, 3.2.11, 4.0.1 |
django PyPI | From 2.2 | 2.2.26, 3.2.11, 4.0.1 |
django PyPI | From 2.2 | 2.2.26 |
django PyPI | From 3.2 | 3.2.11 |
django PyPI | From 4.0 | 4.0.1 |
Django PyPI | From 2.2 | 2.2.26 |
2 more packages
Django PyPI | From 3.2 | 3.2.11 |
Django PyPI | From 4.0 | 4.0.1 |
Products include Djangoproject Django, Fedoraproject Fedora.
How do I fix CVE-2021-45452?
Upgrade django to a fixed version for your release line: 2.2.26, 3.2.11 or 4.0.1.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2021-45452 being exploited?
There is no known exploitation of CVE-2021-45452 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-2021-45452, DEBIAN-CVE-2021-45452, GHSA-jrh2-hc4r-7jwx, PYSEC-2022-3, UBUNTU-CVE-2021-45452.