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Vulnerability details: VCID-m5hg-ajyc-3qf1
Vulnerability ID VCID-m5hg-ajyc-3qf1
Aliases CVE-2020-5187
GHSA-4qf5-7xc2-wqpg
Summary Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') DNN (formerly DotNetNuke) allows Path Traversal.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3.1 8.8 http://packetstormsecurity.com/files/156489/DotNetNuke-CMS-9.4.4-Zip-Directory-Traversal.html
generic_textual HIGH http://packetstormsecurity.com/files/156489/DotNetNuke-CMS-9.4.4-Zip-Directory-Traversal.html
epss 0.00709 https://api.first.org/data/v1/epss?cve=CVE-2020-5187
cvssv3.1 8.8 https://github.com/dnnsoftware/Dnn.Platform/releases
generic_textual HIGH https://github.com/dnnsoftware/Dnn.Platform/releases
cvssv3.1 8.8 https://medium.com/@SajjadPourali/dnn-dotnetnuke-cms-not-as-secure-as-you-think-e8516f789175
generic_textual HIGH https://medium.com/@SajjadPourali/dnn-dotnetnuke-cms-not-as-secure-as-you-think-e8516f789175
cvssv3.1 8.8 https://nvd.nist.gov/vuln/detail/CVE-2020-5187
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2020-5187
Reference id Reference type URL
http://packetstormsecurity.com/files/156489/DotNetNuke-CMS-9.4.4-Zip-Directory-Traversal.html
https://api.first.org/data/v1/epss?cve=CVE-2020-5187
https://github.com/dnnsoftware/Dnn.Platform/releases
https://medium.com/@SajjadPourali/dnn-dotnetnuke-cms-not-as-secure-as-you-think-e8516f789175
CVE-2020-5187 https://nvd.nist.gov/vuln/detail/CVE-2020-5187
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Found at http://packetstormsecurity.com/files/156489/DotNetNuke-CMS-9.4.4-Zip-Directory-Traversal.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/dnnsoftware/Dnn.Platform/releases
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://medium.com/@SajjadPourali/dnn-dotnetnuke-cms-not-as-secure-as-you-think-e8516f789175
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2020-5187
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.72591
EPSS Score 0.00709
Published At June 4, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-04T16:19:49.565565+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/nuget/DotNetNuke.Core/CVE-2020-5187.yml 38.6.0