CVE-2020-5188
DNN File Upload Vulnerability
CVE-2020-5188 is a medium vulnerability (CVSS 6.5) 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 1.85%, the 79th percentile. No source names a fixed version.
DNN (formerly DotNetNuke) through 9.4.4 has Insecure Permissions.
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
- None
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
DNN (formerly DotNetNuke) through 9.4.4 has Insecure Permissions.
- Record
CVE-2020-5188- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N - CVSS 2.0
- 4.0 Medium
AV:N/AC:L/Au:S/C:N/I:P/A:N - Weakness
- CWE-434, CWE-669
- Updated
- 2026-11-02
CVE List No score
DNN (formerly DotNetNuke) through 9.4.4 has Insecure Permissions.
- Record
CVE-2020-5188- Updated
- 2026-11-02
EUVDEUVD-2022-5367 No score
DNN (formerly DotNetNuke) through 9.4.4 has Insecure Permissions.
- Record
EUVD-2022-5367- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-vjcm-j85r-7p68
DNN File Upload Vulnerability
DNN (formerly DotNetNuke) through 9.4.4 has a File upload vulnerability via bypassing client-side file extension check
- Record
GHSA-vjcm-j85r-7p68- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-434
- Updated
- 2026-11-02
OSV
DNN (formerly DotNetNuke) through 9.4.4 has Insecure Permissions.
- Record
CVE-2020-5188- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N - Updated
- 2026-11-02
OSVGHSA-vjcm-j85r-7p68
DNN File Upload Vulnerability
DNN (formerly DotNetNuke) through 9.4.4 has a File upload vulnerability via bypassing client-side file extension check
- Record
GHSA-vjcm-j85r-7p68- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-434
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
DotNetNuke.CoreNuGet |
through 9.4.4 | None known |
DotNetNuke.CoreNuGet |
through 9.4.4, plus listed versions 6.0.07.0.07.0.6.1217.1.07.1.2 Show 24 moreShow less7.2.0.6137.3.0.4997.3.1.207.4.0.3537.4.1.2807.4.2.2168.0.0.8098.0.1.2398.0.2.48.0.3.58.0.4.2269.0.0.10029.0.1.1429.1.0.3679.1.1.1299.2.0.3669.2.1.5339.3.09.3.19.3.29.4.09.4.19.4.29.4.3 |
None known |
History
| When | Changed | Sources |
|---|---|---|
| 2026-11-03 | aliases | EUVD |
| 2026-11-02 | created | CVE List, GitHub Advisories, NVD, OSV |
References
github.com/dnnsoftware/Dnn.Platform/releases
packetstormsecurity.com/files/156484/DotNetNuke-CMS-9.5.0-File-Extension-Check-Bypass.html
medium.com/%40SajjadPourali/dnn-dotnetnuke-cms-not-as-secure-as-you-think-e8516f789175
nvd.nist.gov/vuln/detail/CVE-2020-5188