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CVE-2021-28658 — Directory Traversal in django — CVE Details

MEDIUM

Directory Traversal in Django

Published April 8, 2021Updated September 20, 2024Source: osv

What Should I Do?

Address in Next Maintenance Window

Low exploitation probability (1.51%). Schedule for your next planned update.

Summary

In Django 2.2 before 2.2.20, 3.0 before 3.0.14, and 3.1 before 3.1.8, MultiPartParser allowed directory traversal via uploaded files with suitably crafted file names. Built-in upload handlers were not affected by this vulnerability.

Advisory Timeline

  • First published April 8, 2021 (2013 days ago).
  • Last revised September 20, 2024 — 1261 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

pip
Update django to 3.1.8 or later
pip install "django>=3.1.8"
pip
Update django to 3.0.14 or later
pip install "django>=3.0.14"
pip
Update django to 2.2.20 or later
pip install "django>=2.2.20"

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (3)

Affects 1 ecosystem: pypi (1).

PackageEcosystemAffectedFixed In
django
pypi
3.1, 3.1.1, 3.1.2, 3.1.3 (+7 more)3.1.8
django
pypi
3.0, 3.0.1, 3.0.10, 3.0.11 (+13 more)3.0.14
django
pypi
2.2, 2.2.1, 2.2.10, 2.2.11 (+19 more)2.2.20

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 5.3 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

References

Frequently Asked Questions

What is CVE-2021-28658?
Directory Traversal in Django This vulnerability has been assigned a severity rating of MEDIUM (CVSS score: 5.3/10).
How do I check if my project is affected by CVE-2021-28658?
CVE-2021-28658 affects django. It has a 1.5% probability of exploitation within 30 days (EPSS score). Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2021-28658 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
5.3

Exploitation requires specific conditions or has limited impact. Remediate within weeks.

EPSS Score (30-day exploit probability)
1.51%
Higher than 81% of vulnerabilities

This places it in the top quartile of EPSS-scored vulnerabilities — 80.9% of tracked vulnerabilities score at or below it, so it is more likely to be exploited than most of the tracked corpus.

Also Known As

GHSA-xgxc-v2qg-chmh
BIT-django-2021-28658
PYSEC-2021-6

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