CVE-2020-5187
DNN Path Traversal via Zip Slip
DNN (formerly DotNetNuke) through 9.4.4 allows Path Traversal (issue 2 of 2).
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
DNN (formerly DotNetNuke) through 9.4.4 allows Path Traversal (issue 2 of 2).
- Record
CVE-2020-5187- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.5 Medium
AV:N/AC:L/Au:S/C:P/I:P/A:P - Weakness
- CWE-22
- Updated
- 2026-11-02
CVE List No score
DNN (formerly DotNetNuke) through 9.4.4 allows Path Traversal (issue 2 of 2).
- Record
CVE-2020-5187- Updated
- 2026-11-02
EUVDEUVD-2022-2427 No score
DNN (formerly DotNetNuke) through 9.4.4 allows Path Traversal (issue 2 of 2).
- Record
EUVD-2022-2427- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-4qf5-7xc2-wqpg
DNN Path Traversal via Zip Slip
DNN (formerly DotNetNuke) through 9.4.4 allows Path Traversal via unsafe handling of zip files
- Record
GHSA-4qf5-7xc2-wqpg- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-22
- Updated
- 2026-11-02
OSV
DNN (formerly DotNetNuke) through 9.4.4 allows Path Traversal (issue 2 of 2).
- Record
CVE-2020-5187- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVGHSA-4qf5-7xc2-wqpg
DNN Path Traversal via Zip Slip
DNN (formerly DotNetNuke) through 9.4.4 allows Path Traversal via unsafe handling of zip files
- Record
GHSA-4qf5-7xc2-wqpg- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-22
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
DotNetNuke.CoreNuGet |
before 9.5.0 | 9.5.0 |
DotNetNuke.CoreNuGet |
before 9.5.0, plus listed versions 6.0.07.0.07.0.6.1217.1.07.1.2 Show 25 moreShow less7.2.0.6137.3.0.4997.3.1.207.4.0.3537.4.1.2807.4.2.2168.0.0.8098.0.1.2398.0.2.48.0.3.58.0.4.2269.0.0.10029.0.1.1429.1.0.3679.1.1.1299.2.0.3669.2.1.5339.3.09.3.19.3.29.4.09.4.19.4.29.4.39.4.4 |
9.5.0 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-5187 is a high vulnerability (CVSS 8.8) in Dnnsoftware Dotnetnuke, published February 24, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.39%, the 84th percentile. Fixed in DotNetNuke.Core 9.5.0.
References
github.com/dnnsoftware/Dnn.Platform/releases
packetstormsecurity.com/files/156489/DotNetNuke-CMS-9.4.4-Zip-Directory-Traversal.html
medium.com/%40SajjadPourali/dnn-dotnetnuke-cms-not-as-secure-as-you-think-e8516f789175
nvd.nist.gov/vuln/detail/CVE-2020-5187