CVE-2020-5187 DNN Path Traversal via Zip Slip
Attackers can exploit a path traversal vulnerability in DNN to read or modify arbitrary files on the server.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-5187?
CVE-2020-5187 is a high-severity path traversal vulnerability in Dnnsoftware Dotnetnuke, published on 24 Feb 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
DNN (formerly DotNetNuke) through 9.4.4 allows Path Traversal (issue 2 of 2).
Weakness: CWE-22
Which versions are affected by CVE-2020-5187?
2 open source packages ship an affected version, including DotNetNuke.Core. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
DotNetNuke.Core NuGet | All versions | 9.5.0 |
DotNetNuke.Core NuGet | All versions | 9.5.0 |
Products include Dnnsoftware Dotnetnuke.
How do I fix CVE-2020-5187?
Upgrade DotNetNuke.Core to 9.5.0 or later.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2020-5187 being exploited?
There is no known exploitation of CVE-2020-5187 in the wild and no public exploit code.
Other vulnerabilities in Dnnsoftware Dotnetnuke
- CVE-2017-9822 DotNetNuke (DNN) Remote Code Execution
- CVE-2018-15811 DotNetNuke (DNN) Inadequate Encryption Strength
- CVE-2018-18325 DotNetNuke (DNN) Inadequate Encryption Strength
- CVE-2025-64095 DNN Insufficient Access Control - Image Upload allows for Site Content Overwrite
- CVE-2006-3601 Privilege escalation in n/a
Sources
Also known as GHSA-4qf5-7xc2-wqpg.