CVE-2020-5186

DNN XSS Vulnerability

5.4 Medium

CVE-2020-5186 is a medium vulnerability (CVSS 5.4) 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 0.88%, the 59th percentile. No source names a fixed version.

DNN (formerly DotNetNuke) through 9.4.4 allows XSS (issue 1 of 2).

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: Required

What an attacker can affect

Confidentiality: Low
Integrity: Low
Availability: None

Exploit likelihood

0.88%Unchanged since Apr 14, 2021

What each source reports

NVD Score used 5.4

DNN (formerly DotNetNuke) through 9.4.4 allows XSS (issue 1 of 2).

Record: CVE-2020-5186
CVSS 3.1: 5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CVSS 2.0: 3.5 LowAV:N/AC:M/Au:S/C:N/I:P/A:N
Weakness: CWE-79
Updated: 2026-11-02

CVE List No score

DNN (formerly DotNetNuke) through 9.4.4 allows XSS (issue 1 of 2).

Record: CVE-2020-5186
Updated: 2026-11-02

EUVDEUVD-2022-3424 No score

DNN (formerly DotNetNuke) through 9.4.4 allows XSS (issue 1 of 2).

Record: EUVD-2022-3424
Updated: 2026-11-03

GitHub AdvisoriesGHSA-9phr-h5mx-4fp6 5.4

DNN XSS Vulnerability

DNN (formerly DotNetNuke) through 9.4.4 allows XSS (issue 1 of 2).

Record: GHSA-9phr-h5mx-4fp6
CVSS 3.1: 5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

OSV 5.4

DNN (formerly DotNetNuke) through 9.4.4 allows XSS (issue 1 of 2).

Record: CVE-2020-5186
CVSS 3.1: 5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Updated: 2026-11-02

OSVGHSA-9phr-h5mx-4fp6 5.4

DNN XSS Vulnerability

DNN (formerly DotNetNuke) through 9.4.4 allows XSS (issue 1 of 2).

Record: GHSA-9phr-h5mx-4fp6
CVSS 3.1: 5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

Affected products

dnnsoftware dotnetnuke

Affected packages

Affected packages
Package	Affected	Fixed
`DotNetNuke.Core` NuGet	through 9.4.4	None known
`DotNetNuke.Core` NuGet	through 9.4.4, plus listed versions 6.0.07.0.07.0.6.1217.1.07.1.2 Show 24 moreShow less 7.2.0.6137.3.0.4997.3.1.207.4.0.3537.4.1.2807.4.2.2168.0.0.8098.0.1.2398.0.2.48.0.3.58.0.4.2269.0.0.10029.0.1.1429.1.0.3679.1.1.1299.2.0.3669.2.1.5339.3.09.3.19.3.29.4.09.4.19.4.29.4.3	None known

History

History
When	Changed	Sources
2026-11-03	aliases	EUVD
2026-11-02	created	CVE List, GitHub Advisories, NVD, OSV

Attack profile

How easy it is to exploit

What an attacker can affect

Exploit likelihood

What each source reports

Affected products

Affected packages

History

References