Medium severity6.4OSV Advisory· Published Feb 3, 2026· Updated Jun 17, 2026
CVE-2020-37103
CVE-2020-37103
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3- Range: v9.1.0, v9.3.0-rc0, v9.3.0-rc1, …
cpe:2.3:a:dnnsoftware:dotnetnuke:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:dnnsoftware:dotnetnuke:*:*:*:*:*:*:*:*range: <=9.5.0
- (no CPE)range: 9.5
Patches
Vulnerability mechanics
References
4- www.exploit-db.com/exploits/48124nvdExploitThird Party AdvisoryVDB Entry
- medium.com/@SajjadPourali/dnn-dotnetnuke-cms-not-as-secure-as-you-think-e8516f789175nvdThird Party Advisory
- www.vulncheck.com/advisories/dotnetnuke-persistent-cross-site-scriptingnvdThird Party Advisory
- dnnsoftware.comnvdProduct
News mentions
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