Medium 6.5Published Sep 22, 2025

CVE-2025-59535DotNetNuke.Core allows loading of unused themes on anonymous clients through query parameters

Updated under an hour ago (Oct 27, 2026, 12:40 AM ET)

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It affects dnnsoftware Dnn.Platform and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for dnnsoftware Dnn.Platform

Exploited in the last 30 days

DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. Prior to version 10.1.0, arbitrary themes can be loaded through query parameters. If an installed theme had a vulnerability, even if it was not used on any page, this could be loaded on unsuspecting clients without knowledge of the site owner. This issue has been patched in version 10.1.0.

CVSS: 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Weakness (CWE): CWE-20, CWE-200, CWE-829
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Sep 23, 2025
First seen by InfoSec Signals: Oct 11, 2026

Affected products

Affected products

dnnsoftware Dnn.Platform dnnsoftware:dnn.platform (from the name)	before 10.1.0	CNA record
dnnsoftware dotnetnuke dnnsoftware:dotnetnuke	before 10.1.0	NVD

References

References

https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-wq2j-w9pm-7x2p	x-refsource-confirm, vendor-advisory
https://github.com/dnnsoftware/Dnn.Platform/commit/72f30f69fd2214d77f6c2577dfcca495a24caf5c	x-refsource-misc, patch
https://github.com/dnnsoftware/Dnn.Platform/blob/develop/DNN%20Platform/Library/UI/Skins/Skin.cs#L305	x-refsource-misc, product

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.