CVE-2020-37103

5.1 mediumEPSS 0.4%

Medium (5.1) in dnnsoftware dotnetnuke. EPSS 0.4% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

5.1 medium

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

CVSS 3.1

5.4 medium

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 29% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2026-02-03
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

dnnsoftware:dotnetnuke

References

http://dnnsoftware.com/
https://medium.com/@SajjadPourali/dnn-dotnetnuke-cms-not-as-secure-as-you-think-e8516f789175
https://www.exploit-db.com/exploits/48124
https://www.vulncheck.com/advisories/dotnetnuke-persistent-cross-site-scripting

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