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CVE-2020-37103

DotNetNuke 9.5 - Persistent Cross-Site Scripting

Published: Feb 3, 2026Updated: Feb 9, 2026 Sources: CVE List NVDCWE-79
NVD MITRE
6.4CVSSMEDIUM
EPSS Score
0.3%
Top 79.5%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
No Fix Available

Description

DotNetNuke 9.5 contains a persistent cross-site scripting vulnerability that allows normal users to upload malicious XML files with executable scripts through journal tools. Attackers can upload XML files with XHTML namespace scripts to execute arbitrary JavaScript in users' browsers, potentially bypassing CSRF protections and performing more damaging attacks.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:CC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-79

Affected Products

dotnetnukednnsoftware
On-premWeb App
Web & CMS Plugins / cms-core
DotNetNukeDnnsoftware
On-premWeb App
Web & CMS Plugins / cms-core
dnnsoftwarecommercialWeb & CMS Pluginsaka dotnetnuke, dnn.platform, dnn platform

Attack Graph

Products CVE Techniques Tactics

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Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

http://dnnsoftware.com/
dnnsoftware.com
https://medium.com/@SajjadPourali/dnn-dotnetnuke-cms-not-as-secure-as-you-think-e8516f789175
medium.com
https://www.exploit-db.com/exploits/48124
exploit-db.com
and 1 more references View all →

Timeline

Published
Feb 3, 2026
Last Updated
Feb 9, 2026

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